Bustamante, C. & Lamilla, J. & Concha, F. & Ebert, D.A. & Bennett, M.B. (2012)
Morphological Characters of the Thickbody Skate Amblyraja frerichsi (Krefft 1968) (Rajiformes: Rajidae), with Notes on Its Biology.
PLoS ONE, 7(6), Article e39963 DOI: 10.1371/journal.pone.0039963