@article {322927, title = {Amer. Potato J. 60: 433. 1983.}, year = {1983}, keywords = {Brahms}, author = {K.A.Okada \& A.M.Clausen} } @article {321119, title = {Euphytica 31: 827. 1982.}, year = {1982}, keywords = {Brahms}, author = {K.A.Okada \& A.M.Clausen} } @article {321124, title = {Euphytica 34: 227. 1985.}, year = {1985}, keywords = {Brahms}, author = {K.A.Okada \& A.M.Clausen} }