@article{articlea2cb4cc5,
title   = {Spectrophotometric observations of giacobini-zinner and hartley-good comets},
author = {Landaberry, S. J. C. and Singh, Patan Deen and Freitas Pacheco, José Antonio},
year = {1988},
journal   = {Boletim da Sociedade Astronômica Brasileira}
}