1. Canton, S. P. & J. V. Ward, 1981. Benthos and zooplankton of coal strip mine ponds in the mountains of North-Western Colorado, U.S.A. Hydrobiologia 85: 23?31.
2. Czaika, S. C., 1978. Crustacean zooplankton in lake Erie off Cleveland harbour. Ohio. J. Sci. 78: 18?25.
3. Dixon, W. J., M. B. Brown, L. Engelman, J. W. Frane, M. A. Hill, R. I. Jennrich & J. D. Toporek, 1981. BMDP Statistical Software 1981. University of California Press, Berkeley, California. 726 p.
4. Dumont, H. J., I. van de Velde & S. Dumont, 1975. The dry weight estimate of biomass in a selection of Cladocera, Copepoda and Rotifera from the plankton, periphyton and benthos of continental waters. Oecologia 19: 75?97.
5. Hartland-Rowe, R., 1966. The fauna and ecology of temporiry pools in Western Canada. Verh. int. Ver. Limnol. 16: 577?584.