@article{articlee1bc8858,
title   = {Porosity dependence of elastic constants in aluminum nitride ceramics},
author = {Yoshimura, Humberto Naoyuki and Molisani, André Luiz and Narita, Nilson Eiji and Cesar, Paulo Francisco and Goldenstein, Hélio},
year = {2007},
doi = {10.1590/s1516-14392007000200006},
journal   = {Materials Research}
}