Barker D. M., Hebert P. D. N.The role of density in sex determination Daphnia magna (Crustacea: Cladocera) // Freshwater Biol., 1990, v. 23, p. 373 - 377.
Crease T. J., Hebert P. D. N.A test for production of sexual pheromones by Daphnia magna (Crustacea: Cladocera) // Freshwater Biol., 1983, v. 13, p. 491 - 496.