000 00327nam a2200121Ia 4500
001 MPKV108400
008 120911s9999 xx 000 0 und d
082 _a633
245 _aField Crop Research Vol 5
_c;
246 _aField Crop Research Vol 1
260 _aNetherlands
_bElsevier Sci. Publishers
_c1982
650 _aField Crops
999 _c71757
_d71757