- [Wiki]
https://en.wikipedia.org/wiki/Strongylocentrotus_purpuratus.
- [BluhPiep1998]
Bluhm, B. A., Piepenburg, D., and von Juterzenka, K. (1998).
Distribution, standing stock, growth, mortality and production of
Strongylocentrotus pallidus (Echinodermata: Echinoidea) in the
northern Barents Sea.
Polar Biol, 20:325--334.
- [FalkLonn1983]
Falk-Petersen, I.-B. and Lønning, S. (1983).
Reproductive cycles of two closely related sea urchin species,
Strongylocentrotus droebachiensis (O.F. Müller) and
Strongylocentrotus pallidus (G.O. Sars).
Sarsia, 68(2):157--164. doi:10.1080/00364827.1983.10420567.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.