Citation: Hj. Scholten, EFFECT OF POLYAMINES ON THE GROWTH AND DEVELOPMENT OF SOME HORTICULTURAL CROPS IN MICROPROPAGATION, Scientia horticulturae, 77(1-2), 1998, pp. 83-88
Citation: Hj. Scholten et Rlm. Pierik, AGAR AS A GELLING AGENT - DIFFERENTIAL BIOLOGICAL EFFECTS IN-VITRO, Scientia horticulturae, 77(1-2), 1998, pp. 109-116
Citation: P. Nijkamp et Hj. Scholten, SPATIAL INFORMATION-SYSTEMS - DESIGN, MODELING, AND USE IN PLANNING, International journal of geographical information systems, 7(1), 1993, pp. 85-96