@article{article4dc1395f,
title   = {The phylogenetic relationships of Pachyrhachis problematicus, and the evolution of limblessness in snakes (Lepidosauria, Squamata)},
author = {Zaher, Hussam El Dine and Rieppel, Olivier},
year = {1999},
doi = {10.1016/s1251-8050(00)88639-5},
journal   = {Comptes Rendus de l'Academie des Sciences. Serie 2. Sciences de la Terre et des Planètes}
}