@inproceedings{inproceedings83780b9a,
title   = {Evolution of planetary nebulae in the mid-infrared},
author = {Ortiz, Roberto Pereira and Copetti, Marcos V.F and Maciel, Walter Junqueira and Lorenz-Martins, Silvia},
year = {2007},
publisher = {Astronomical Society of the Pacific},
booktitle   = {Meeting on why Galaxies Care about AGB Stars: their importante as Actors and Probes}
}