Authors: Wertheim, SJ Vercammen, J

Citation: Sj. Wertheim et J. Vercammen, A multi-site pear-interstem trial in the Netherlands and Belgium, J AMER POMO, 54(4), 2000, pp. 199-207

Authors: Wertheim, SJ

Citation: Sj. Wertheim, Developments in the chemical thinning of apple and pear, PLANT GR R, 31(1-2), 2000, pp. 85-100

Authors: Wertheim, SJ Callesen, O

Citation: Sj. Wertheim et O. Callesen, Results of multi-site interstem trials with apple trees, GARTENBAUWI, 65(6), 2000, pp. 251-259