Optical reflection from planetary surfaces as an operator-eigenvalue problem Robert L. Wildey OriginalPaper Pages: 103 - 116
Photodissociation lifetime of 32S2 molecule in comets A. A. De AlmeidaP. D. Singh OriginalPaper Pages: 117 - 125
The stability of the cometary plasma tail and rays A. I. ErshkovichD. A. Mendis OriginalPaper Pages: 127 - 134
Lunar and Venusian radar bright rings T. W. ThompsonR. S. SaundersD. E. Weissman OriginalPaper Pages: 167 - 185
A note on the total mass of comets in the solar system D. A. MendisM. L. Marconi Letter to the Editor Pages: 187 - 190