@misc{misc05784d30,
title   = {Radiopacity of composite resins for posterior restorations},
author = {Kraul, A. and Loguercio, Alessandro Dourado and Reis, A. and Bauer, J. and Rodrigues Filho, Leonardo Eloy and Oda, Margareth},
year = {2002},
booktitle   = {International Association for Dental Research. Annual Meeting. Brazilian Division}
}