Mitani, Y., Andrews, R. D., Sato, K., Kato, A., Naito, Y., & Costa, D. P. (2010). Three-dimensional resting behaviour of northern elephant seals: Drifting like a falling leaf. The Royal Society.

Mitani, Yoko, Russel D. Andrews, Katsufumi Sato, Akiko Kato, Yasuhiko Naito, ja Daniel P. Costa. Three-dimensional Resting Behaviour of Northern Elephant Seals: Drifting Like a Falling Leaf. The Royal Society, 2010.

Mitani, Yoko, et al. Three-dimensional Resting Behaviour of Northern Elephant Seals: Drifting Like a Falling Leaf. The Royal Society, 2010.