Reflections on the mechanical structure of the base of the skull and on the face - Ferré, J. C.; Chevalier, C.; Robert, R.; Degrez, J.; Cloarec, A. Y.; Legoux, R.; Orio, E.; Barbin, J. Y. (Springer, 1989)
http://dx.doi.org/10.1007/BF02102245
Keywords: WW-YZ