Scanner observations of P/Halley (1982i) P. S. GorayaB. S. RautelaB. B. Sanwal OriginalPaper Pages: 221 - 226
Third order uranus-neptune planetary theory Osman M. KamelAbdel Aziz Bakry OriginalPaper Pages: 227 - 293
A comparison between panoramic photography and conventional aerial photography in terms of mapping accuracy S. Piteri OriginalPaper Pages: 295 - 302
Radioactive heating and layered structure of cometary nuclei S. YabushitaK. Wada OriginalPaper Pages: 303 - 313
The temperature variations in the troposphere, stratosphere, and mesosphere of the Northern Hemisphere, 1965–1981 C. Varotsos Letter to the Editor Pages: 315 - 317
Comments on planetesimal rotations induced by collisions G. P. Horedt Letter to the Editor Pages: 319 - 320
A reply to Horedt's comments on planetesimal rotations induced by collisions S. Clairemidi Letter to the editor Pages: 321 - 323
