1. Physical parameters of the atmosphere of Venus from Venera 15 and 16 missions

   • B. Petropoulos
   • P. Telonis

   OriginalPaper Pages: 1 - 7

2. Interplanetary dust particles and solar electromagnetic radiation

   • J. Klačka

   OriginalPaper Pages: 9 - 13

3. The inverse planetary problem: a numerical treatment

   • V. S. Geroyannis
   • F. N. Valvi

   OriginalPaper Pages: 15 - 21

4. Eulerian libration points of restricted problem of three oblate spheroids

   • S. M. El-Shaboury
   • M. A. El-Tantawy

   OriginalPaper Pages: 23 - 28

5. The construction of a third-order secular analytical J-S-U-N theory by the Hori-Lie technique

   • Abdel Aziz Bakry
   • Osman M. Kamel
   • Salwa M. Waziry

   OriginalPaper Pages: 29 - 66

6. The topography of Epimetheus

   • Philip J. Stooke

   OriginalPaper Pages: 67 - 83