By Sederström Roger   Mayntz Michael   Sender Grazyna   in Acta Agriculturae Scandinavica, A

ISSN:0906-4702|52|4|161-166

Taylor & Francis Ltd‎(2002)‎

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By Mayntz Michael   Sederström Roger   Sender Grażyna   in Acta Agriculturae Scandinavica, A

ISSN:0906-4702|51|2|107-113

Taylor & Francis Ltd‎(2001)‎

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