000			00324nam a2200145Ia 4500
008			170101s1991 xx 000 0 und d
082			_a631.42 U-2S
100			_aULRICH, B
245		0	_aSoil acidity
260			_bBerlin _c1991
300			_a224p
650			_aSOIL ACIDITY
653			_aSOIL ACIDITY
942			_2ddc _cB
999			_c112360 _d112360