@inproceedings{inproceedingsb4a2e4f4,
title   = {Optical limiter using porphyrin, metalloporphyrin and ytterbium bis-phthalocyanine},
author = {Barbosa Neto, Newton Martins and Mendonça, Cleber Renato and De Boni, Leonardo and Rodrigues Júnior, J J and Carvalho, E G de and Gaffo, L and Oliveira Junior, Osvaldo Novais de and Zílio, Sérgio Carlos and Feitosa, C A C and Dinelli, Luis R and Batista, A A},
year = {2001},
publisher = {SBF},
booktitle   = {Encontro Nacional de Física da Matéria Condensada}
}