@ARTICLE{
author={Ewers Rolf,Seemann Rudolf,Krennmair Gerald,Schicho Kurt,Kurdi Ayman Omar,Kirsch Axel,Reichwein Astrid},
year={2010},
title={Planning Implants Crown Down-A Systematic Quality Control for Proof of Concept},
journal={JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY},
volume={68},
number={11},
pages={2868-2878},
document_type={Article},
}