Lateur, M. , Wagemans, C. & Populer, C. (1999). Evaluation of fruit tree genetic resources as sources of polygenic scab resistance in an apple breeding programme. Acta Horticulturae, (No. 484),
Le Gouis, J. , Jestin, L. , Ordon, F. , De Froidmont, D. , Beghin, D. , Joseph, J. & Froidmont, F. (1999). Agronomic comparison of two sets of SSD barley lines differing for the ym4 resistance gene against barley mosaic viruses. Agronomie, 19: (2), 125-131.
Mahaut, T. & Deleu, R. (1999). Development of a semi-field method for testing the side-effects of pesticides on the hoverfly Episyrphus balteatus (De Geer). Proceedings in: Mededelingen - Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent, 343-348.
Nieto Nafria, J. , Latteur, G. , Mier Durante, M. , Tahon, J. , Perez Hidalgo, N. & Nicolas, J. (1999). The aphids of Belgium (Hemiptera: Aphididae). Parasitica, 55: (1),
Steyer, S. , Leal, C. , Gregoire, D. & Froidmont, D. (1999). Evaluation of barley yellow dwarf virus tolerance: a controlled field system compared with a molecular marker test. Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz, 106: (5), 553-555.
Bensalah, B. , Froidmont, F. & Jacquemin, J. (1999). Screening barley germplasm for resistance to a new isolate of barley yellow mosaic virus. Agronomie, 18: 71-78.
Bultreys, A. & Gheysen, I. (1999). Biological and molecular detection of toxic lipodepsipeptides-producing Pseudomonas syringae strains and PCR identification in plants. Applied and Environmental Microbiology, 65: 1904-1909.
Druart, P. (1999). Somatic embryogenesis in Prunus species. In: Somatic embryogenesis in woody plants, eds S.M. Jain, P.K. Gupta, R.J. Newton. Kluwer Acad. Publish., The Netherlands, 215-238.
Magein, H. (1999). Congrès de l'ISHS (Bruxelles) Amélioration et évaluation de fruits tempérés pour les zones tropicales et subtropicales. Le fruit belge, 477: 20.