@inproceedings{inproceedings854a4579,
title   = {Three sources of gas in the comae of comets},
author = {Almeida, Amaury Augusto de and Huebner, W F and Benkhoff, J and Boice, D C and Singh, Patan Deen},
year = {1995},
publisher = {Union Astronomica Internacional},
booktitle   = {Reunion Regional Latinoamericana de Astronomia}
}