Authors: Ohlander, L Lagerberg, C Gertsson, U

Citation: L. Ohlander et al., Visions for ecologically sound agricultural systems, J SUST AGR, 14(1), 1999, pp. 73-79

Authors: Gertsson, U Kellander, T

Citation: U. Gertsson et T. Kellander, Nitrogen fertilisation of Phaseolus vulgaris (brown beans), ACTA HORT, (506), 1999, pp. 105-107