000 00279nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.461.5:546.17
_bLEE
245 0 _aNitrogen as an ecological factor
260 _aOxford
_bBlackwell
_c1983
700 _aLee, J A
942 _cBK
999 _c37077
_d37077