000 00280nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.4
_bADV.20
245 0 _aAdvances in soil science. V 20.
260 _aBerlin
_bSpringer
_c1992
650 _aRhizobium symbiosis
942 _cBK
999 _c40644
_d40644