@inbook{Wittwer-Backofen2002,
author = {Wittwer-Backofen, U.  and Buba, H. },
title= {Age estimation by tooth cementum annulation: Perspectives of a new validation study},
year = {2002},
doi = {10.1017/CBO9780511542428.006},
editor = {Hoppa, R.D.},
editor = {Vaupel, J.W.},
booktitle = {Paleodemography: Age distributions from skeletal samples},
address = {Cambridge},
publisher = {Cambridge University Press},
pages = {107--128},
}