1. A comparison of proton activity in cycles 20–23

   • Yu. I. Logachev
   • G. A. Bazilevskaya
   • O. S. Yakovchouk

   OriginalPaper 04 June 2015 Pages: 277 - 286

2. The heliospheric sheet configuration according to the coronal ray synoptic maps in solar activity cycles 23 and 24

   • S. A. Guseva
   • M. P. Fat’yanov
   • A. D. Shramko

   OriginalPaper 04 June 2015 Pages: 287 - 294

3. Radio emission of solar flare of February 12, 2010, and electron acceleration modes

   • R. V. Gorgutsa
   • V. A. Kovalev
   • V. V. Fomichev

   OriginalPaper 04 June 2015 Pages: 295 - 298

4. A decrease in solar and geomagnetic activity from cycle 19 to cycle 24

   • A. D. Gvishiani
   • V. I. Starostenko
   • O. V. Legostaeva

   OriginalPaper 04 June 2015 Pages: 299 - 306

5. Conditions in solar wind and magnetosphere during the nontypical VLF hiss burst on December 8, 2013

   • N. G. Kleimenova
   • J. Manninen
   • S. V. Gromov

   OriginalPaper 04 June 2015 Pages: 307 - 315

6. Signal absorption effects on HF radio paths near Sodankyla observatory (Finland)

   • D. V. Blagoveshchenskii

   OriginalPaper 04 June 2015 Pages: 316 - 325

7. What solar and geomagnetic activities does F2-layer critical frequency median correspond to in midlatitudes?

   • M. G. Deminov
   • G. F. Deminova

   OriginalPaper 04 June 2015 Pages: 326 - 332

8. The effect of particles and electromagnetic waves on vortex structures in the atmosphere and the ionosphere

   • N. I. Izhovkina

   OriginalPaper 04 June 2015 Pages: 333 - 343

9. Choice of series of initial data in deriving trends in the ionospheric F2-layer parameters

   • A. V. Konstantinova
   • A. D. Danilov

   OriginalPaper 04 June 2015 Pages: 344 - 352

10. Ionospheric effects of the Chelyabinsk meteoroid

    • L. F. Chernogor

    OriginalPaper 04 June 2015 Pages: 353 - 368

11. Distribution of magnetogravity waves during strong earthquakes (M > 6.5) preparation periods

    • O. M. Barkhatova
    • N. A. Barkhatov
    • N. V. Kosolapova

    OriginalPaper 04 June 2015 Pages: 369 - 377

12. Models of wave perturbations of the night emission of the molecular oxygen atmospheric (0,0) band

    • M. A. Poluarshinov
    • A. N. Belyaev
    • S. Sh. Nikolaishvili

    OriginalPaper 04 June 2015 Pages: 378 - 388

13. Dynamics and physical model of secular variations within a range of up to 100 years

    • V. V. Ivanov
    • T. N. Bondar

    OriginalPaper 04 June 2015 Pages: 389 - 397

14. Recent results of monitoring of the vertical component of the electrical field in Lake Baikal on the surface-bed baseline

    • S. M. Korotaev
    • N. M. Budnev
    • A. I. Panfilov

    OriginalPaper 04 June 2015 Pages: 398 - 409

15. Petro- and paleomagnetism of the Malyi Kut Lower Neo-Pleistocene marine deposits (Krasnodar Krai)

    • O. V. Pilipenko
    • V. M. Trubikhin
    • S. K. Gribov

    OriginalPaper 04 June 2015 Pages: 410 - 420