By Lombnæs Peder   Singh Bal Ram   in Acta Agriculturae Scandinavica, B

ISSN:0906-4710|53|4|161-167

Taylor & Francis Ltd‎(2003)‎

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By Cuvardic Maja   Tveitnes Steinar   Krogstad Tore   Lombnæs Peder   in Acta Agriculturae Scandinavica, B

ISSN:0906-4710|54|4|193-201

Taylor & Francis Ltd‎(2004)‎

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