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International Board for Plant Genetic Resources ,  European Cooperative Programme for the Conservation and Exchange of Crop Genetic Resources ,  [Report of a Working Group on Avena: Third meeting, 7-9 March 1989, Radzików, Poland] ,  Report of a Working Group on Avena: Third meeting, 7-9 March 1989, Radzików, Poland

International Board for Plant Genetic Resources ,  [Report of a Working Group on Barley: Third meeting, 18-20 April 1989, Gatersleben, Germany] ,  Report of a Working Group on Barley: Third meeting, 18-20 April 1989, Gatersleben, Germany

International Board for Plant Genetic Resources ,  [Report of a Working Group on Barley: Second meeting, 27-29 May 1986, Gatersleben, Germany] ,  Report of a Working Group on Barley: Second meeting, 27-29 May 1986, Gatersleben, Germany

International Board for Plant Genetic Resources ,  [Report of a Working Group on Barley: First meeting, 18-19 May 1983, Gatersleben, Germany] ,  Report of a Working Group on Barley: First meeting, 18-19 May 1983, Gatersleben, Germany