Kato A., Watanuki Y., Shaughnessy P., Le Maho Y. & Naito Y. (1999). Intersexual differences in the diving behaviour of foraging subantarctic cormorant (phalacrocorax albiventer) and japonese cormorant (P. filamentosus). C.R. Acad. Sci. Paris, Série III, 557–562.