References
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- Fry, J. C. & Ramsay, A. J., 1977: Changes in the activity of epiphytic bacteria of Elodea canadensis and Chara vulgaris following treatment with the herbicide paraquat. — Limnol. Oceanogr. 22: 556–562.
- Kanazawa, A., 1963: Vitamins in algae, (in Japanese, summary in English). — Bull. Jap. Soc. Sci. Fish. 29: 713–731.
- Kurata, A., Saraceni, E, Ruggiu, D., Nakanishi, M., Melchiorri-Santolini, U. & Kadota, H., 1976: Relationship between B group vitamins and primary production and phytoplankton population in Lake Mergozzo (Northern Italy). — Mem. Ist. Ital. Idrobiol. 33: 257–284.
- Love, R. J. R. & Robinson, G. G. C., 1977: The primary productivity of submerged macrophytes in West Blue Lake, Manitoba. — Can. J. Bot. 55: 118–127.