000 00301nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Van Elderen, E."
245 0 _aScheduling farm operations: A Simulation model
260 _bPudoc Wageningen
260 _c1987
365 _b0.00
942 _cBK
999 _c137831
_d137831