1. Spectral investigation of the irregular galaxy NGC 520

   • É. E. Khachikyan

   OriginalPaper Pages: 87 - 98

2. Observations of radio emission of clusters of galaxies

   • G. M. Tovmasyan

   OriginalPaper Pages: 99 - 103

3. Profiles of H_α emission line in the spectra of irregular variables

   • G. V. Zaitseva
   • E. A. Kolotilov

   OriginalPaper Pages: 104 - 110

4. Distribution of energy in the continuous spectrum of Vega and Agena in the range 2000–3800 Å

   • G. A. Gurzadyan
   • Dzh B. Oganesyan

   OriginalPaper Pages: 111 - 117

5. Source number as a function of the flux and the V/V_m method in the investigation of the evolution of quasistellar radio sources

   • V. Yu. Terebizh

   OriginalPaper Pages: 118 - 124

6. Linear problem of the radiation of of a multilevel atom

   • A. G. Nikogosyan

   OriginalPaper Pages: 125 - 133

7. Intermediate state in superconducting neutron star

   • Yu. M. Bruk

   OriginalPaper Pages: 134 - 143

8. Nonlinear theory of the development of potential perturbations

   • A. G. Doroshkevich
   • V. S. Ryaben'kii
   • S. F. Shandarin

   OriginalPaper Pages: 144 - 153

9. Multiple scattering of resonance radiation in a plane layer and in a sphere

   • Sh. A. Sabashvili

   OriginalPaper Pages: 154 - 165

10. Black holes as components of massive emission stars

    • O. Kh. Guseinov

    OriginalPaper Pages: 166 - 169

11. Relation between phenomena due to the gas and dust components of the interstellar medium

    • A. N. Geraschenko

    OriginalPaper Pages: 170 - 172

12. Thermal waves in stars

    • I. A. Klimishin

    OriginalPaper Pages: 173 - 179

13. Spectra of Markaryan galaxies. VII

    • M. A. Arakelyan
    • É. A. Dibai
    • V. F. Esipov

    Brief Communications Pages: 180 - 181