000 00318nam a2200121Ia 4500
001 MPKV109025
008 120911s9999 xx 000 0 und d
082 _a632.5
245 _aWeed Research Vol 22
_c;
246 _aWeed Research Vol 11
260 _aEngland
_bBlackwell Scientific Publ.
_c1982
650 _aWeed Science
999 _c72371
_d72371