000			00482nam a2200169Ia 4500
008			130223s9999 xx 000 0 und d
080			_a633.16:631.584321
100			_aKvist, Mats
245			_aCatch crops undersown in spring barley-competitive effects and cropping methods
260			_aUppsala
260			_bDepartment of Crop Production Science
260			_c1992
300			_a210 p.
440			_aSweden, Swedish University of
901			_pS42036
942			_cB _2udc
999			_c117496 _d117496