• [Wiki] http://en.wikipedia.org/wiki/Herklotsichthys_quadrimaculatus.
• [fishbase] http://www.fishbase.se/summary/Herklotsichthys-quadrimaculatus.html.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [MiltBlab1993] Milton, D. A., Blaber, S. J. M., and Rawlinson, N. J. F. (1993). Age and growth of three species of clupeids from Kiribati, tropical central south Pacific. Journal of fish Biology, 43:89--1008.
• [ShirWata2007] Shirafuji, N., Watanabe, Y., Takeda, Y., and Kawamura, T. (2007). Maturation and spawning of Spratelloides gracilis Clupeidae in temperate waters off Cape Shionomisaki, central Japan. Fisheries Science, 73:623--632.