J. B.  Hacker, ?Polyploid structure in the Setaria sphacelata complex?, Australian Journal of Botany, vol. 16, pp. 539-544, 1968.

J. B.  Hacker, ?Cytology of species hybrids in the Setaria sphacelata complex?, Australian Journal of Botany, vol. 16, pp. 551-554, 1968.