@inproceedings{inproceedingsb53706e9,
title   = {Spectrophotometric observations of comet halley during 1985-1986 apparition},
author = {Freitas Pacheco, José Antonio and Landaberry, S. J. C. and Singh, Patan Deen},
year = {1987},
publisher = {Esa},
booktitle   = {Symposium on the Diversity & Simetry of Comets}
}