L. Dollo. 1909. The fossil vertebrates of Belgium. Annals of the New York Academy of Science 19(4):99-119
DOI ↗
Bibliography (1)
J. W. M. Jagt, N. Motchurova-Dekova, and P. Ivanov, H. Capetta, A. S. Schulp. 2006. Latest Cretaceous mosasaurs and lamniform sharks from Labirinta cave, Vratsa district (northwest Bulgaria): a preliminary note. Annales Geologiques de la Peninsule Balkanique 67:51-63
DOI ↗