1. Foundations of morphometrics;Bookstein;Annual Review of Ecology and Systematics,1982
2. Morphological Tools for Landmark Data; Geometry and Biology;Bookstein,1991
3. Statistical Analysis of Shape;Dryden,1998
4. Cranial variation in man: a study by multivariate analysis of patterns of difference among recent human populations;Howells,1973
5. A geometric morphometric study of regional craniofacial variation in Mexico;Humphries;International Journal of Osteoarchaeology,2015