000			00327nam a2200133Ia 4500
008			130223s9999 xx 000 0 und d
100			_aQuemener, J.
245			_aMeasurement of soil potassium
260			_aSwitzerland
260			_c1979
440			_aNo. 4; International Potash In
901			_pS31300
942			_cB _2udc
999			_c127485 _d127485