Meyer, Ulrich ; Grabow, Martin ; Janssen-Tapken, Ulrike.. Book of Abstracts of the 60th Annual Meeting of the European Association for Animal Production : Barcelona, Spain, August 24th - 27th, 2009 -- 9789086861217 -- http://old.eaap.org/Previous_Annual_Meetings/2009Barcelona/Book_Abstracts.pdf.
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