Second catalogue of X-ray sources P. R. AmnuelO. H. GuseinovSh. Yu. Rakhamimov OriginalPaper Pages: 3 - 103
Spectrophotometry and morphology of the galaxies with UV excess: III M. A. KazarianE. Ye. KhachikianA. A. Yegiazarean OriginalPaper Pages: 105 - 113
The heavy element yields of neutron capture nucleosynthesis A. G. W. Cameron OriginalPaper Pages: 123 - 131
Cosmic-ray variations related to solar, geomagnetic and interplanetary disturbances (23 March–7 April, 1976) A. GeraniosH. Mavromichalaki OriginalPaper Pages: 133 - 148
Equations of motion ofn massive-charged particles in general relativity theory C. G. KostakisM. Antonacopoulos OriginalPaper Pages: 149 - 159
On the optical counterparts of the X-ray sources in the Orion Nebula Luciana Bianchi OriginalPaper Pages: 161 - 166
Dependence on reddening of interstellar column densities in the direction of O stars H. Hüseyín Menteşe OriginalPaper Pages: 173 - 187
Revised photometric elements of three semi-detached binary systems L. MilanoG. RussoA. D'orsi OriginalPaper Pages: 189 - 198
Seyfert galaxies and the cosmic γ-ray diffuse background L. BassaniR. C. ButlerG. Villa OriginalPaper Pages: 199 - 207
A comment on some oscillatory models of adiabatic stars Henning Knutsen OriginalPaper Pages: 209 - 212
The nearest stellar wind bubble or fossil supernova remnant P. G. Johnson OriginalPaper Pages: 213 - 221
Is there Aβ/L relation for any type of qso absorption line system? A. S. Trew OriginalPaper Pages: 223 - 228
Photoelectric observations of BV Draconis P. RovithisH. Rovithis-Livaniou OriginalPaper Pages: 229 - 240
Remarks on the evaluation of critical parameters in self-gravitating systems C. BonoliA. Curir Letters to the Editor Pages: 241 - 246
The distribution of quasar absorption line systems — Selection effects C. Martin Gaskell Letters to the Editor Pages: 247 - 248
Galactic halos, globular clusters and massive neutrinos Roberto FabbriRemo Ruffini Letters to the Editor Pages: 249 - 253