@inproceedings{inproceedings0d4bdd66,
title   = {Effect of Ca and Y additions on PTCR properties of barium titanate ceramics},
author = {Oliveira, Tiago Cordeiro de and Santos, Jerre Cristiano Alves dos and Silva, Ronaldo Santos dos and Hernandes, Antônio Carlos and M'Peko, Jean-Claude},
year = {2010},
publisher = {Sociedade Brasileira de Física - SBF},
booktitle   = {Encontro Nacional de Física da Matéria Condensada - ENFMC}
}