7G. D. McCollum,S. L. Sinden. Inheritance study of tuber glycoalkaloids in a wild potato,Solanum chacoense bitter[J] 1979,American Potato Journal(2):95~113
8A. Zitnak,G. R. Johnston. Glycoalkaloid content of B5141-6 potatoes[J] 1970,American Potato Journal(7):256~260