Kato, S., Tsurumaru, S., Taga, M., Yamane, T., Shibata, Y., Ohno, K., Fujiwara, A., Yamano, K., & Yoshikuni, M. (2009). Neuronal peptides induce oocyte maturation and gamete spawning of sea cucumber, Apostichopus japonicus. Developmental Biology, 326(1), 169–176. https://doi.org/10.1016/j.ydbio.2008.11.003