Reuter, Kim E.; Levitan, Don R. (2010). "Influence of Sperm and Phytoplankton on Spawning in the Echinoid Lytechinus variegatus". The Biological Bulletin. 219 (3): 198–206. doi:10.1086/BBLv219n3p198. PMID21183441. S2CID16637278.
Reuter, Kim E.; Levitan, Don R. (2010). "Influence of Sperm and Phytoplankton on Spawning in the Echinoid Lytechinus variegatus". The Biological Bulletin. 219 (3): 198–206. doi:10.1086/BBLv219n3p198. PMID21183441. S2CID16637278.
Reuter, Kim E.; Levitan, Don R. (2010). "Influence of Sperm and Phytoplankton on Spawning in the Echinoid Lytechinus variegatus". The Biological Bulletin. 219 (3): 198–206. doi:10.1086/BBLv219n3p198. PMID21183441. S2CID16637278.