共 45 条
[1]
ACHTEN JMF, 1999, UNPUB ACTA HORTICULT
[2]
ALEXANDER CP, 1999, TIME SPECIAL ISSUE 2, V154, P90
[3]
[Anonymous], 1987, WORLD COMMISSION ENV
[4]
Baerdemaeker J. de, 1994, XII World Congress on Agricultural Engineering: Volume 2. Proceedings of a conference held in Milan, Italy, August 29 - September 1 1994., P1493
[5]
BAKKER JC, 1998, EEN DUURZAAM GEWASPR
[6]
BALENDONCK J, 1998, P EU PROJ INT C AGR
[7]
BLOKHUIS HJ, 1992, NETH J AGR SCI, V40, P327
[8]
BLOKHUIS HJ, 1995, 9531 IMAGDLO
[9]
Bontsema J., 1999, PROGR TECHN AGR ENV, P44
[10]
BREGA L, 1998, MONDO MACCHINA, V7, P34