1. Amon, P., Haas, E., and Sumper, M., The Sex Inducing Pheromone and Wounding Trigger the Same Set of Genes in the Multicellular Green Alga Volvox, Plant Cell, 1998, vol. 10, pp. 781–789.
2. Darden, W.H., Sexual Differentiation in Volvox aureus, J. Protozool., 1966, vol. 13, pp. 239–255.
3. Darden, W.H., Production of Male Inducing Hormone by a Parthenosporic Volvox aureus, J. Protozool., 1968, vol. 15, pp. 412–414.
4. Darden, W.H., Some Properties of Male Inducing Pheromones from Volvox aureus M5, Microbios, 1980, vol. 28, pp. 27–39.
5. Darden, W.H. and Sayers, E.R., Parthenospore Induction in Volvox aureus DS, Microbios, 1969, vol. 2, pp. 171–176.