Ángel Guerra, Álvaro Roura, M. P. Sieiro, J. M. Portela, and J. L. del Río, “New insights into the morphology, reproduction and distribution of the large-tuberculate octopus Graneledone macrotyla from the Patagonian slope”, Sci. mar., vol. 76, no. 2, pp. 319–328, Jun. 2012.