1. Bloesch, J. (ed):1988, Mesocosm Studies, Hydrobiologia 159, 221.
2. Bowie, G.L., Porcella, D.B. and Grieb, T.M.: 1990, Modeling the effects of selenium on aquatic ecosystems. These proceedings
3. Brown, R. L.:1985, The aquacultural potential of sub-surface agricultural drainage in the San Joaquin Valley, California. Ph. D. dissertation. Univ. Calif. Davis. 180 p.
4. Burton, M.A.S. and Phillips, M.L.:1981, J. Plant Nutrition 3, 503.
5. Cherry, D.S., Guthrie, R.K., Sherberger, F.F., and Larrick, S.R.:1979, Hydrobiologia 62, 257.