@inproceedings{inproceedings3e7e1c41,
title   = {3d photoionization model for the bi-polar pn ic4406},
author = {Gruenwald, Ruth Bomfim and Viegas, Sueli Maria Marino and Broguiere, D},
year = {1995},
publisher = {Union Astronomica Internacional},
booktitle   = {Reunion Regional Latinoamericana de Astronomia}
}