References
- Perhac, R. M., 1972: Distribution of Cd, Co, Cu, Fe, Mn, Ni, Pb, and Zn in dissolved and particulate solids from two streams in Tennessee. — J. Hydrol. 15, 177–186.
- Stumm, W. & Morgan, J. J., 1970: Aquatic chemistry. — Wiley, N.Y. 583 p.
- Williams, L. G., 1970: Concentration of 85strontium and 137cesium from water solutions by Cladophora and Pithophora. — J. Phycol. 6, 314–316.
- Williams, L. G., Howell, M. & Straub, C. P., 1960: Packaged organic materials as monitoring tools for radionuclides. — Science 132, 1554–55.
- Williams, L. G. & Swanson, H. D., 1958: Concentration of cesium-137 by algae. — Science 127, 186–188.