| nr |
titel |
auteur |
tijdschrift |
jaar |
jaarg. |
afl. |
pagina('s) |
type |
| 1 |
Acoustic devices for simultaneous determination of adsorbed amount and surface-conductivity changes by gas adsorption
|
Inoue, Yasunobu
|
|
1993
|
14 |
1-3 |
p. 549-550
2 p.
|
artikel
|
| 2 |
Acoustic Love plate sensors: a theoretical model for the optimization of the surface mass sensitivity
|
Stevenson, Adrian C.
|
|
1993
|
14 |
1-3 |
p. 635-637
3 p.
|
artikel
|
| 3 |
Acoustic Love plate sensors: comparison with other acoustic devices utilizing surface SH waves
|
Gizeli, Electra
|
|
1993
|
14 |
1-3 |
p. 638-639
2 p.
|
artikel
|
| 4 |
A disposable lactate sensor capable of correcting errors induced by reducing substances
|
Uenoyama, Harumi
|
|
1993
|
14 |
1-3 |
p. 657-658
2 p.
|
artikel
|
| 5 |
A humidity and hydrogen gas-sensitive polyimide-silicon diode
|
Nakagomi, Shinji
|
|
1993
|
14 |
1-3 |
p. 617-618
2 p.
|
artikel
|
| 6 |
Aluminum-doped ZnO thin film gas sensor capable of detecting freshness of sea foods
|
Nanto, Hidehito
|
|
1993
|
14 |
1-3 |
p. 715-717
3 p.
|
artikel
|
| 7 |
Amperometric acidic gas sensors using platinum oxide reduction and iodine reduction
|
Ishiji, Toru
|
|
1993
|
14 |
1-3 |
p. 583-584
2 p.
|
artikel
|
| 8 |
Amperometric biosensors based on flavoenzymes and quinoenzymes from bacterial membranes
|
Miki, Koujiro
|
|
1993
|
14 |
1-3 |
p. 661-662
2 p.
|
artikel
|
| 9 |
Amperometric enzyme electrode with the use of dehydrogenase and NAD(P)H oxidase
|
Mizutani, Fumio
|
|
1993
|
14 |
1-3 |
p. 574-575
2 p.
|
artikel
|
| 10 |
Amperometric enzyme sensor using conducting organic salt-containing polypyrrole matrix
|
Begum, Anwara
|
|
1993
|
14 |
1-3 |
p. 576-577
2 p.
|
artikel
|
| 11 |
Amperometric oxygen sensors based on fast ion conductors for rapid detection at ambient temperature
|
Kuwano, Jun
|
|
1993
|
14 |
1-3 |
p. 608-609
2 p.
|
artikel
|
| 12 |
An adsorption-luminescent Al2O3 sheet for determining vapor of odor substances in air
|
Utsunomiya, Koh
|
|
1993
|
14 |
1-3 |
p. 627-628
2 p.
|
artikel
|
| 13 |
Analysis of abnormal output of zirconia oxygen sensor in exhaust gas at low excess air ratio
|
Suemasu, Tatsuo
|
|
1993
|
14 |
1-3 |
p. 501-503
3 p.
|
artikel
|
| 14 |
Analysis of SnO2−x /Pt thin film for gas sensors
|
Pil Lee, Sung
|
|
1993
|
14 |
1-3 |
p. 504-505
2 p.
|
artikel
|
| 15 |
Analytical application for chemicals using an enzyme sensor based on an ISFET
|
Sakai, Hiromitsu
|
|
1993
|
14 |
1-3 |
p. 578-580
3 p.
|
artikel
|
| 16 |
An amperometric biosensor for fructose using a PQQ enzyme
|
Khan, G.F.
|
|
1993
|
14 |
1-3 |
p. 673-674
2 p.
|
artikel
|
| 17 |
An electrical percolation model for tin dioxide polycrystalline thin films
|
Pijolat, C.
|
|
1993
|
14 |
1-3 |
p. 646-648
3 p.
|
artikel
|
| 18 |
An electrochemical study on the redox-reaction mechanism of Prussian blue in propylene carbonate using the quartz crystal microbalance
|
Ohsawa, Yasuhiko
|
|
1993
|
14 |
1-3 |
p. 556-557
2 p.
|
artikel
|
| 19 |
A new hydrogen sensor for molten aluminum
|
Yajima, T.
|
|
1993
|
14 |
1-3 |
p. 697-699
3 p.
|
artikel
|
| 20 |
A new type of halide-ion biosensor using halorhodopsin and an ion-sensitive field-effect transistor
|
Kubo, Izumi
|
|
1993
|
14 |
1-3 |
p. 659-660
2 p.
|
artikel
|
| 21 |
An impedance based ultra-thin platinum island film glucose sensor
|
Kasapbasioglu, Berrin
|
|
1993
|
14 |
1-3 |
p. 749-751
3 p.
|
artikel
|
| 22 |
An ionization chamber-type CO sensor
|
Takahashi, I.
|
|
1993
|
14 |
1-3 |
p. 539-540
2 p.
|
artikel
|
| 23 |
Anion-sensing electrodes based on nickel(II) and copper(II) mixed ligand complexes
|
Sato, Noriko
|
|
1993
|
14 |
1-3 |
p. 743-745
3 p.
|
artikel
|
| 24 |
Applications of penicillinase FET in penicillin-fermentation engineering
|
Zheng-Xiao, Wang
|
|
1993
|
14 |
1-3 |
p. 568-569
2 p.
|
artikel
|
| 25 |
Aroma identification using a quartz-resonator sensor in conjunction with pattern recognition
|
Nanto, Hidehito
|
|
1993
|
14 |
1-3 |
p. 718-720
3 p.
|
artikel
|
| 26 |
A study of the sensing characteristics of Fe2O3 gas-sensing thin film
|
Peng, J.
|
|
1993
|
14 |
1-3 |
p. 591-593
3 p.
|
artikel
|
| 27 |
Author index of volumes B13 and B14
|
|
|
1993
|
14 |
1-3 |
p. 761-763
3 p.
|
artikel
|
| 28 |
Biosensor based on ISFET for penicillin determination
|
Zhong, Li-chan
|
|
1993
|
14 |
1-3 |
p. 570-571
2 p.
|
artikel
|
| 29 |
Biosensor of hydrogen peroxide using triethyloxonium fluoroborate as alkylating reagent before enzyme immobilization
|
Dajun, Cao
|
|
1993
|
14 |
1-3 |
p. 554-555
2 p.
|
artikel
|
| 30 |
Catalyst-adsorptive oxide-semiconductor gas sensors
|
Kang, W.P.
|
|
1993
|
14 |
1-3 |
p. 682-684
3 p.
|
artikel
|
| 31 |
Characteristics of tin dioxide thin-film sensor for the detection of H2S
|
Yu Bao Chu, Chun
|
|
1993
|
14 |
1-3 |
p. 519-520
2 p.
|
artikel
|
| 32 |
Characterization and optimization of a CO2-sensitive organically-modified silicate with respect to its use as a gas sensor
|
Lin, J.
|
|
1993
|
14 |
1-3 |
p. 528-529
2 p.
|
artikel
|
| 33 |
Characterization of N-substituted polypyrrole thin-film electrode having immobilized glucose oxidase
|
Yasuzawa, Mikito
|
|
1993
|
14 |
1-3 |
p. 665-666
2 p.
|
artikel
|
| 34 |
Chemical sensors in hydrogen diagnostic systems in nuclear power
|
Yakimov, Sergey S.
|
|
1993
|
14 |
1-3 |
p. 693-694
2 p.
|
artikel
|
| 35 |
Comparison of thin- and thick-film CO2 sensors
|
Leonhard, V.
|
|
1993
|
14 |
1-3 |
p. 530-531
2 p.
|
artikel
|
| 36 |
Construction and characterization of low-temperature-operating biosensors
|
Sode, Koji
|
|
1993
|
14 |
1-3 |
p. 663-664
2 p.
|
artikel
|
| 37 |
CO2-sensing characteristics of the solid-state electrochemical sensor based on sodium ionic conductors
|
Sadaoka, Yoshihiko
|
|
1993
|
14 |
1-3 |
p. 532-535
4 p.
|
artikel
|
| 38 |
Current-voltage response of an electrochemical photosensor
|
Aroutiounian, Vladimir M.
|
|
1993
|
14 |
1-3 |
p. 632-634
3 p.
|
artikel
|
| 39 |
Design of ion sensor based on Langmuir-Blodgett films having potential-sensitive dye: effect of surface treatment of solid substrate on potassium-ion sensing
|
Shimomura, Masatsugu
|
|
1993
|
14 |
1-3 |
p. 629-631
3 p.
|
artikel
|
| 40 |
Detection of carboxylic acid vapor using poly(N,N-dimethylaminoethyl methacrylate)
|
Sakai, Yoshiro
|
|
1993
|
14 |
1-3 |
p. 625-626
2 p.
|
artikel
|
| 41 |
Development of a fast response smart hydrogen temperature-humidity sensor
|
Gui, Cheng-qun
|
|
1993
|
14 |
1-3 |
p. 700-702
3 p.
|
artikel
|
| 42 |
Development of a thin-film oxygen sensor for combustion control of gas appliances
|
Saji, Keiichi
|
|
1993
|
14 |
1-3 |
p. 695-696
2 p.
|
artikel
|
| 43 |
Development of carbon monoxide detector using Au fine particles-doped α-Fe2O3
|
Funazaki, Naomi
|
|
1993
|
14 |
1-3 |
p. 536-538
3 p.
|
artikel
|
| 44 |
Development of pulse-drive semiconductor gas sensor
|
Amamoto, T.
|
|
1993
|
14 |
1-3 |
p. 587-588
2 p.
|
artikel
|
| 45 |
Development of semiconductor gas sensor to discern flavors of consomme soup
|
Maekawa, Tomoki
|
|
1993
|
14 |
1-3 |
p. 713-714
2 p.
|
artikel
|
| 46 |
Device modeling of semiconductor gas sensors
|
Geistlinger, Helmut
|
|
1993
|
14 |
1-3 |
p. 685-686
2 p.
|
artikel
|
| 47 |
Drift behaviour of ISFETs with Si3N4-SiO2 gate insulator
|
Hein, Peter
|
|
1993
|
14 |
1-3 |
p. 655-656
2 p.
|
artikel
|
| 48 |
Dynamic response of a low-temperature field-effect oxygen sensor
|
Krause, Steffi
|
|
1993
|
14 |
1-3 |
p. 499-500
2 p.
|
artikel
|
| 49 |
Effect of doping anions in polypyrrole gas sensors
|
Nagase, Hiroyasu
|
|
1993
|
14 |
1-3 |
p. 596-597
2 p.
|
artikel
|
| 50 |
Effect of noble metal catalyst on titania exhaust gas oxygen sensor
|
Wu, M.T.
|
|
1993
|
14 |
1-3 |
p. 491-
1 p.
|
artikel
|
| 51 |
Effects of phase transition of added TiO2 on characteristics of SnO2-based hydrocarbon-gas sensors
|
Chung, Wan-Young
|
|
1993
|
14 |
1-3 |
p. 517-518
2 p.
|
artikel
|
| 52 |
Effects of tin oxide semiconductor-electrode interface on gas-sensitivity characteristics
|
Fukui, Kiyoshi
|
|
1993
|
14 |
1-3 |
p. 589-590
2 p.
|
artikel
|
| 53 |
Electrochemical filter/biosensor flow injection analysis system for the direct analysis of practical samples
|
Okawa, Yusuke
|
|
1993
|
14 |
1-3 |
p. 541-542
2 p.
|
artikel
|
| 54 |
Electrochemically-deposited RuO2 films as pH sensors
|
Pásztor, K.
|
|
1993
|
14 |
1-3 |
p. 561-562
2 p.
|
artikel
|
| 55 |
Electrochemiluminescent sensing for the characterization of DNA-interacting antitumor and antiviral agents
|
Ikariyama, Yoshihito
|
|
1993
|
14 |
1-3 |
p. 725-727
3 p.
|
artikel
|
| 56 |
Enhancing effect of gold deposition in the optical detection of reducing gases in air by metal oxide thin films
|
Kobayashi, Tetsuhiko
|
|
1993
|
14 |
1-3 |
p. 545-546
2 p.
|
artikel
|
| 57 |
Fiberoptic evanescent wave sensing of antigen-antibody binding
|
Carome, E.F.
|
|
1993
|
14 |
1-3 |
p. 732-733
2 p.
|
artikel
|
| 58 |
Fiber optic immunosensors for detection of some drugs
|
Starodub, N.F.
|
|
1993
|
14 |
1-3 |
p. 728-731
4 p.
|
artikel
|
| 59 |
Film-type In2O3 gas sensor
|
Yasukawa, Yoshikazu
|
|
1993
|
14 |
1-3 |
p. 613-614
2 p.
|
artikel
|
| 60 |
F−-ion conducting composite material for chemical sensors based on LaF3 and tetrafluoroethylene
|
Vasiliev, A.A.
|
|
1993
|
14 |
1-3 |
p. 649-652
4 p.
|
artikel
|
| 61 |
Frequency change of piezoelectric quartz crystals in contact with solutions and development of latex piezoelectric immunoassay (LPEIA)
|
Kurosawa, Shigeru
|
|
1993
|
14 |
1-3 |
p. 734-735
2 p.
|
artikel
|
| 62 |
Gas-sensing characteristics of ZnO-NiO junction structures with intervening ultrathin SiO2 layer
|
Suga, Kazuo
|
|
1993
|
14 |
1-3 |
p. 598-599
2 p.
|
artikel
|
| 63 |
Gas-sensing properties of ultrathin zinc oxide films
|
Yamazaki, Tsutomu
|
|
1993
|
14 |
1-3 |
p. 594-595
2 p.
|
artikel
|
| 64 |
Gas-sensor properties of Re1+x Ba2−xCu3O7−y
|
Munakata, Fumio
|
|
1993
|
14 |
1-3 |
p. 506-508
3 p.
|
artikel
|
| 65 |
Highly sensitive small volume voltammetry of reversible redox species with an IDA electrochemical cell and its application to selective detection of catecholamine
|
Niwa, Osamu
|
|
1993
|
14 |
1-3 |
p. 558-560
3 p.
|
artikel
|
| 66 |
Humidity- and gas-sensing properties with an Fe2O3 film sputtered on a porous Al2O3 film
|
Fukazawa, Mari
|
|
1993
|
14 |
1-3 |
p. 521-522
2 p.
|
artikel
|
| 67 |
Humidity-sensitive electrical properties of MgAl2O4 thin films
|
Gusmano, Gualtiero
|
|
1993
|
14 |
1-3 |
p. 525-527
3 p.
|
artikel
|
| 68 |
Humidity sensor with manganese oxide for room temperature use
|
Xu, Chao-Nan
|
|
1993
|
14 |
1-3 |
p. 523-524
2 p.
|
artikel
|
| 69 |
Integrated gas sensor for oxygen detection
|
Demarne, V.
|
|
1993
|
14 |
1-3 |
p. 497-498
2 p.
|
artikel
|
| 70 |
Investigation of a novel quartz gas detector by resonant damping theory
|
Dong, Yong-gui
|
|
1993
|
14 |
1-3 |
p. 551-553
3 p.
|
artikel
|
| 71 |
Kelvin probe measurements for chemical analysis: interfacial structure of electrodes exposed to the gas phase containing water vapour
|
Samec, Z.
|
|
1993
|
14 |
1-3 |
p. 741-742
2 p.
|
artikel
|
| 72 |
Liquid membrane electrodes for nucleotides based on sapphyrin, cytosine-pendant triamine and neutral cytosine derivative as sensory elements
|
Tohda, Koji
|
|
1993
|
14 |
1-3 |
p. 669-672
4 p.
|
artikel
|
| 73 |
Metal phosphonate-based quartz crystal microbalance sensors for amines and ammonia
|
Aoki, Katsunori
|
|
1993
|
14 |
1-3 |
p. 703-704
2 p.
|
artikel
|
| 74 |
Method of fabrication of ISFETs and CHEMFETs on an Si-SiO2-Si structure
|
Poghossian, A.S.
|
|
1993
|
14 |
1-3 |
p. 653-654
2 p.
|
artikel
|
| 75 |
Monoelectrode gas sensors based on SnO2 semiconductor ceramics
|
Orlik, D.R.
|
|
1993
|
14 |
1-3 |
p. 605-607
3 p.
|
artikel
|
| 76 |
Mössbauer and microstructural studies of iron phthalocyanine as a potential gas sensor
|
O'Rourke, J.K.
|
|
1993
|
14 |
1-3 |
p. 690-692
3 p.
|
artikel
|
| 77 |
Multi-wavelength surface plasmon resonance as an optical sensor for characterizing the complex refractive indices of chemical samples
|
Jorgenson, Ralph C.
|
|
1993
|
14 |
1-3 |
p. 721-722
2 p.
|
artikel
|
| 78 |
NO2 gas-sensing properties of Ga-doped ZnO thin film
|
Matsushima, Shigenori
|
|
1993
|
14 |
1-3 |
p. 621-622
2 p.
|
artikel
|
| 79 |
Nucleoside oxidase-immobilized electrode as a sensor for nucleoside and nucleotide
|
Kinoshita, Hideaki
|
|
1993
|
14 |
1-3 |
p. 572-573
2 p.
|
artikel
|
| 80 |
Optical immunosensing for IgG
|
Owaku, Koji
|
|
1993
|
14 |
1-3 |
p. 723-724
2 p.
|
artikel
|
| 81 |
Optical thin films for gas sensing
|
Baron, M.G.
|
|
1993
|
14 |
1-3 |
p. 543-544
2 p.
|
artikel
|
| 82 |
Oxygen-sensing factor of TiO2 doped with metal ions
|
Hasegawa, Sadao
|
|
1993
|
14 |
1-3 |
p. 509-510
2 p.
|
artikel
|
| 83 |
Oxygen sensing properties of Ti-doped Nb2O5
|
Ohtaki, Michitaka
|
|
1993
|
14 |
1-3 |
p. 495-496
2 p.
|
artikel
|
| 84 |
Photoacoustic sensor for carbon aerosols
|
Petzold, A.
|
|
1993
|
14 |
1-3 |
p. 640-641
2 p.
|
artikel
|
| 85 |
Planar-type, gas diffusion-controlled oxygen sensor fabricated by the plasma spray method
|
Oh, Seajin
|
|
1993
|
14 |
1-3 |
p. 581-582
2 p.
|
artikel
|
| 86 |
Platinum-titania oxygen sensors and their sensing mechanisms
|
Xu, Yulong
|
|
1993
|
14 |
1-3 |
p. 492-494
3 p.
|
artikel
|
| 87 |
Polymer-based ion-selective electrodes modified with naphthalene sulfonates
|
Okada, Tatsuhiro
|
|
1993
|
14 |
1-3 |
p. 563-565
3 p.
|
artikel
|
| 88 |
Polypyrrole bienzyme electrodes with glucose oxidase and peroxidase
|
Tatsuma, Tetsu
|
|
1993
|
14 |
1-3 |
p. 752-753
2 p.
|
artikel
|
| 89 |
Preparation and characterization of an optically-detectable hydrogen gas sensor consisting of Pd/WO3 thin films
|
Oh, Yong-su
|
|
1993
|
14 |
1-3 |
p. 547-548
2 p.
|
artikel
|
| 90 |
Preparation and characterization of SnO2 gas-sensitive membranes by sol-gel process
|
Li, H.X.
|
|
1993
|
14 |
1-3 |
p. 675-676
2 p.
|
artikel
|
| 91 |
Properties of the monoclonal antibody for the construction of a tetryl sensitive fluoroimmuno sensing system
|
Yugawa, Keiko
|
|
1993
|
14 |
1-3 |
p. 754-755
2 p.
|
artikel
|
| 92 |
Prototype of a phosphine sensor based on a conducting LB film
|
Perez, H.
|
|
1993
|
14 |
1-3 |
p. 711-712
2 p.
|
artikel
|
| 93 |
Relationship between electrical conductivity of metal oxide sensor and catalytic conversion of substances
|
Maksimovich, Nelly P.
|
|
1993
|
14 |
1-3 |
p. 600-601
2 p.
|
artikel
|
| 94 |
Responses of SnO2-based sensors for vapors with electron-accepting groups
|
Choi, Jeong-Ja
|
|
1993
|
14 |
1-3 |
p. 515-516
2 p.
|
artikel
|
| 95 |
Scanning Kelvin probe as a high resolution surface analysis device
|
Liess, H.D.
|
|
1993
|
14 |
1-3 |
p. 739-740
2 p.
|
artikel
|
| 96 |
Selective and sensitive humidity sensor based on barium chloride dihydrate
|
Sberveglieri, G.
|
|
1993
|
14 |
1-3 |
p. 615-616
2 p.
|
artikel
|
| 97 |
Semiconductor sensors for determination of fluorine-containing gas mixtures
|
Vasiliev, A.A.
|
|
1993
|
14 |
1-3 |
p. 705-707
3 p.
|
artikel
|
| 98 |
Sensing mechanism of SnO2-based sensors for alcohols
|
Kim, Heesook P.
|
|
1993
|
14 |
1-3 |
p. 511-512
2 p.
|
artikel
|
| 99 |
Sensing mechanism of SnO2 thin film gas sensors
|
Ohnishi, Hisao
|
|
1993
|
14 |
1-3 |
p. 677-678
2 p.
|
artikel
|
| 100 |
Sensing properties of Ln2CuO4/SnO2 (Ln = rare earth) having a heterojunction
|
Makimoto, Osamu
|
|
1993
|
14 |
1-3 |
p. 585-586
2 p.
|
artikel
|
| 101 |
Simultaneous determination of gas mixture using plural SnO2-gas sensors
|
Hayakawa, Yasuhiro
|
|
1993
|
14 |
1-3 |
p. 513-514
2 p.
|
artikel
|
| 102 |
Some differences between Au and Pt electrodes in SnO2 thick-film gas sensors
|
Ylinampa, A.
|
|
1993
|
14 |
1-3 |
p. 602-604
3 p.
|
artikel
|
| 103 |
Spectroscopic and electrochemical properties of ion-sensing membranes fabricated by ion implantation
|
Pham, M.T.
|
|
1993
|
14 |
1-3 |
p. 746-748
3 p.
|
artikel
|
| 104 |
Studies of body fluids with optical fiber sensors
|
Takahashi, Chikako
|
|
1993
|
14 |
1-3 |
p. 756-757
2 p.
|
artikel
|
| 105 |
Study of sensing theory by resonant damping
|
Feng, Guan-ping
|
|
1993
|
14 |
1-3 |
p. 736-738
3 p.
|
artikel
|
| 106 |
Study of thick-film pH sensors
|
Liu, J.H.
|
|
1993
|
14 |
1-3 |
p. 566-567
2 p.
|
artikel
|
| 107 |
Subject index of volumes B13 and B14
|
|
|
1993
|
14 |
1-3 |
p. 764-776
13 p.
|
artikel
|
| 108 |
Surface acoustic wave NO2 sensor: influence of humidity
|
Rebière, Dominique
|
|
1993
|
14 |
1-3 |
p. 642-645
4 p.
|
artikel
|
| 109 |
Temperature dependence of gas sensitivities on a catalytic thin film
|
Zdanévitch, I.
|
|
1993
|
14 |
1-3 |
p. 679-681
3 p.
|
artikel
|
| 110 |
Template sensors for low weight organic molecules based on SiO2 surfaces
|
Starodub, N.F.
|
|
1993
|
14 |
1-3 |
p. 708-710
3 p.
|
artikel
|
| 111 |
The kinetic semiconductor gas-sensor conduction model and its practical use in gas analysis
|
Gutman, E.Ye.
|
|
1993
|
14 |
1-3 |
p. 687-689
3 p.
|
artikel
|
| 112 |
Tin oxide (SnOx) alcohol sensor from metal organic decomposed (MOD) thick film
|
Tsai, P.P.
|
|
1993
|
14 |
1-3 |
p. 610-612
3 p.
|
artikel
|
| 113 |
Trimethylamine-sensing mechanism of TiO2-based sensors 3. Temperature programmed desorption behaviour of trimethylamine and variation of sensitivity with sensor thickness
|
Shimizu, Yasuhiro
|
|
1993
|
14 |
1-3 |
p. 623-624
2 p.
|
artikel
|
| 114 |
Tungsten oxide-based semiconductor sensor for detection of nitrogen oxides in combustion exhaust
|
Akiyama, Morito
|
|
1993
|
14 |
1-3 |
p. 619-620
2 p.
|
artikel
|
| 115 |
Water-soluble macromolecular mediators for enzyme electrodes
|
Iijima, Seiichiro
|
|
1993
|
14 |
1-3 |
p. 667-668
2 p.
|
artikel
|
| 116 |
Whole blood measurements with thermal micro-biosensors
|
Danielsson, Bengt
|
|
1993
|
14 |
1-3 |
p. 758-759
2 p.
|
artikel
|
Tijdschrift beschrijving