1. On the effect of collisional transitions on the cosmological hydrogen recombination spectrum

   • M. S. Burgin
   • V. L. Kauts
   • N. N. Shakhvorostova

   OriginalPaper Pages: 507 - 513

2. Analysis of optical light curves for the components of the gravitationally lensed quasar SBS 1520+530 based on observations with the 1.5-m RTT-150 telescope in 2001–2005

   • I. M. Khamitov
   • I. F. Bikmaev
   • A. F. Zakharov

   OriginalPaper Pages: 514 - 519

3. Observational evidence for AGN fueling: I. The case of NGC 6104—Merging with a companion

   • A. A. Smirnova
   • A. V. Moiseev
   • V. L. Afanasiev

   OriginalPaper Pages: 520 - 533

4. Central regions of the early-type galaxies in the NGC 3169 group

   • O. K. Sil’chenko
   • V. L. Afanasiev

   OriginalPaper Pages: 534 - 544

5. Formation of galactic subsystems in light of the magnesium abundance in field stars: The halo

   • V. A. Marsakov
   • T. V. Borkova

   OriginalPaper Pages: 545 - 556

6. Evolution of elemental abundances in planetary nebulae

   • Yu. V. Milanova
   • A. F. Kholtygin

   OriginalPaper Pages: 557 - 565

7. Spectrophotometric observations of southern stars in the wavelength range 320–730 nm

   • A. A. Arkharov
   • E. V. Ruban
   • R. Zalles

   OriginalPaper Pages: 566 - 568

8. Soft X-ray oscillations from AT Mic: Flare plasma diagnostics

   • A. V. Stepanov
   • Yu. T. Tsap
   • Yu. G. Kopylova

   OriginalPaper Pages: 569 - 573

9. Heliolatitudinal dependence of cosmic-ray anisotropy

   • G. F. Krymsky
   • P. A. Krivoshapkin
   • V. P. Mamrukova

   OriginalPaper Pages: 574 - 576