By Sæther N.   Havrevoll Ø.   Thuen E.   Vangen O.   in Acta Agriculturae Scandinavica, A

ISSN:0906-4702|60|1|23-32

Taylor & Francis Ltd‎(2010)‎

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By Ekern A.   Havrevoll Ø.   Haug A.   Berg J.   Lindstad P.   Skeie S.   in Acta Agriculturae Scandinavica, A

ISSN:0906-4702|53|2|65-73

Taylor & Francis Ltd‎(2003)‎

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