P. Nunes, C.D.A.; Jangoux, M. (2008). Induction of larval metamorphosis, survival and growth of early juveniles of the burrowing echinoid Echinocardium cordatum (Echinodermata). Cah. Biol. Mar. 49(2): 175-184, meer
P. Nunes, C.D.A.; Jangoux, M. (2007). Larval growth and perimetamorphosis in the echinoid Echinocardium cordatum (Echinodermata): the spatangoid way to become a sea urchin. Zoomorphology 126(2): 103-119. https://dx.doi.org/10.1007/s00435-007-0032-6, meer
Nunes, C.D.A.P.; Jangoux, M. (2004). Reproductive cycle of the spatangoid echinoid Echinocardium cordatum (Echinodermata) in the southwestern North Sea. Int. J. Invert. Reprod. Dev 45(1): 41-57. dx.doi.org/10.1080/07924259.2004.9652572, meer
