000			00485nam a2200169Ia 4500
008			130910s9999 xx 000 0 und d
020			_a9022004406
041			_aeng
082			_221st ed. _a631.417 _bBEE/S
100			_aBeek, J.
245			_aSimulation of nitrogen behaviour in soils _cJ. Beek and M.J. Frissel
260			_aWageningen : _bCentre for Agricultural Publishing , _c1973
300			_a67 p.
653			_aSoils - Nitrogen content
700			_aFrissel, M.J.
942			_cEN _2ddc
999			_c2861 _d2861