[1]
T. A. Jefferson, P. A. Olson, T. R. Kieckhefer, and L. Rojas-Bracho, “Photo-identification of the vaquita (<i>Phocoena sinus</i>): the world’s most endangered cetacean”, Lat. Am. J. Aquat. Mamm., vol. 7, no. 1-2, pp. 53-56, Dec. 2009.