@inproceedings{inproceedings57c84ecd,
title   = {Stellar populations in the local group: contribution from planetary nebulae},
author = {Maciel, Walter Junqueira and Costa, Roberto Dell'Aglio Dias da and Idiart, Thais E.P and Escudero, A. V},
year = {2007},
publisher = {Cambridge University Press},
booktitle   = {Symposium of the International Astronomical Union}
}