IMPROVEMENT OF THE NEBULISER PATTERN OF A FLAME PHOTOMETER.VAN ECK R.1978; ANALYST; G.B.; DA. 1978; VOL. 103; NO 1225; PP. 409-410Article

TOTAL TOTAL SULPHUR DETERMINATION IN PLANT MATERIAL.NOVOZAMSKY I; VAN ECK R.1977; Z. (FRESENIUS') ANAL. CHEM.; DTSCH.; DA. 1977; VOL. 286; NO 5; PP. 367-368; ABS. ALLEM.; BIBL. 9 REF.Article

A NOVEL DIGESTION TECHNIQUE FOR MULTI-ELEMENT PLANT ANALYSISNOVOZAMSKY I; HOUBA VJG; VAN ECK R et al.1983; COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS; ISSN 0010-3624; USA; DA. 1983; VOL. 14; NO 3; PP. 239-248; BIBL. 9 REF.Article

Analyse van transportnetwerken in GIS voor social-geografisch onderzoek = Analysis of transportation networks in GIS for research in human geographyVAN ECK, R; ROBERT, J.Nederlandse Geografische Studies. 1993, Vol 164, isbn 90-6809-177-8, 197 p., isbn 90-6809-177-8Book

Survey investigations of the hidden economy. Some methodological resultsKAZEMIER, B; VAN ECK, R.Journal of economic psychology. 1992, Vol 13, Num 4, pp 569-587, issn 0167-4870Article

A comparison of three procedures used in particle-size distribution analysis of soils = Comparaison de trois procédures utilisées dans l'analyse de la distribution granulométrique des solsHOUBA, V.J.G; NOVOZAMSKY, I; MLAY, E.D.M et al.International workshop on the laboratory methods and data exchange programme. 1986, Num 13, 123Conference Paper

Notes on determinations of nitrate in plant materialNOVOZAMSKY, I; HOUBA, V. J. G; VAN DER EIJK, D et al.Netherlands journal of agricultural science. 1983, Vol 31, Num 3, pp 239-248, issn 0028-2928Article

Selection of fat-equivalent materials in postprocessing dual-energy quantitative CTSTEENBEEK, J. C. M; VAN KUIJK, C; GRASHUIS, J. L et al.Medical physics (Lancaster). 1992, Vol 19, Num 4, pp 1051-1056, issn 0094-2405Article

Continuous-flow technique for generation and separation of methyl borate from iron-containing matrices with subsequent determination of Boron by ICP-AESNOVOZAMSKY, I; VAN ECK, R; VAN DER LEE, J. J et al.Atomic spectroscopy. 1988, Vol 9, Num 4, pp 97-99, issn 0195-5373Article

Comparison of a hot water and cold 0.01 M CaCl₂ extraction procedures for the determination of boron in soilNOVOZAMSKY, I; BARRERA, L. L; HOUBA, V. J. G et al.Communications in soil science and plant analysis. 1990, Vol 21, Num 17-18, pp 2189-2195, issn 0010-3624, 7 p.Article

Determination of the chemical speciation of trace metals in aqueous systems by the Wageningen Donnan Membrane TechniqueTEMMINGHOFF, E. J. M; PLETTE, A. C. C; VAN ECK, R et al.Analytica chimica acta. 2000, Vol 417, Num 2, pp 149-157, issn 0003-2670Article

Determination of total sulphur and extractable sulphate in plant materials by inductively-coupled plasma atomic emission spectrometryNOVOZAMSKY, I; VAN ECK, R; VAN DER LEE, J. J et al.Communications in soil science and plant analysis. 1986, Vol 17, Num 11, pp 1147-1157, issn 0010-3624Article