1. Mills, W. R. and John S. Niederhauser. 1953. Observations on races ofPhytophthora infestans in Mexico. Phyt. 43: 454–455.
2. Niederhauser, John S. and W. R. Mills. 1953. Resistance ofSolanum species toPhytophthora infestans in Mexico. Phyt. 43: 456–457.