6HUTCHISON C B.Heritable characters of maize VII.Shrunken endosperm [J].Joumal of Heredity, 1921,12(2) :76-83.
7MAINS E B.HERITABLE CHARACTERS in MAIZE linkage of a factor for shrunken endosperm with the al factor for aleurone eolor[J].Joumal of Heredity, 1949,40( 1 ) :21-24.