References
- Takahashi, M., Yoshioka, T. & Saijo, Y., 1982: Nitrogen metabolism in Lake Kizaki, Japan. III. Active nitrification in early summer. — Arch. Hydrobiol. 93: 272–286
- Yoh, M., Terai, H. & Saijo, Y., 1983: Accumulation of nitrous oxide in the oxygen deficient layer of freshwater lakes. — Nature 301: 327–329.