1. Interaction of S- and L-bursts in Jupiter's decametric radio spectra

   • Jorma J. Riihimaa
   • Thomas D. Carr

   OriginalPaper Pages: 373 - 387

2. Sur un formalisme explicitant la loi des distances des planetes

   • R. Louise

   OriginalPaper Pages: 389 - 396

3. Dust emission from comets at large heliocentric distances

   • Harry L. F. Houpis
   • D. A. Mendis

   OriginalPaper Pages: 397 - 412

4. The solar system evolution

   • G. P. Gladyshev
   • V. P. Budtov

   OriginalPaper Pages: 413 - 425

5. Charged dust in the outer planetary magnetospheres

   • Jay Roderick Hill
   • D. A. Mendis

   OriginalPaper Pages: 427 - 436

6. Spectrophotometric scan of comet 1973 XII Kohoutek

   • Hisashi S. Ishii
   • Tetsuo Yamamoto
   • Shin'ichi Tamura

   OriginalPaper Pages: 437 - 450

7. Solar-wind interactions with the moon: Nature and composition of nitrogen compounds

   • Nalin R. Mukherjee

   OriginalPaper Pages: 451 - 463

8. The development of central peaks in lunar craters

   • J. W. Bond

   OriginalPaper Pages: 465 - 476

9. Quasi-equilibrium in collisional systems

   • K. A. Hämeen-Anttila

   OriginalPaper Pages: 477 - 506

10. The role of collisions with interplanetary particles in the physical evolution of comets

    • Julio A. Fernández

    OriginalPaper Pages: 507 - 519

11. On the magnetic field in the tail of Comet Halley

    • Alexander I. Ershkovich

    Letter to the Editor Pages: 521 - 522