References
- Ban, Y., 1981: Some observations on the life cycle of the water scorpion, Ranatra unicolor Scott (Hemiptera: Nepidae), in Yamanoshita Bay, Lake Biwa. — Verh. Internat. Verein. Limnol. 21: 1621–1625.
- Ban, Y. & Shibata, S., 1980: Life history of Nepa hoffmanni Esaki, with special reference to the nymphal stage. — The nature and insects 15 (8): 37–1 (in Japanese).
- Zippin, C., 1956: An evaluation of the removal method of estimating animal populations. — Biometrics 12: 163–169.