1. Relationship Between the Polar Electrojet Dynamics and the Amplitude of ELF/VLF Signal from the Ionospheric Source in the Modulated Ionospheric Heating Experiment

   • A. V. Larchenko
   • O. M. Lebed’
   • Yu. V. Fedorenko

   OriginalPaper 02 December 2019 Pages: 385 - 394

2. Large-Scale Disturbances in the Lower and Middle Ionosphere Accompanying Its Modification by the Sura Heater

   • L. F. Chernogor
   • K. P. Garmash
   • V. L. Frolov

   OriginalPaper 02 December 2019 Pages: 395 - 411

3. Quasioptimal Projection Method of Doppler Radar Signal Filtering

   • E. S. Fitasov
   • I. Ya. Orlov
   • S. A. Kozlov

   OriginalPaper 02 December 2019 Pages: 412 - 419

4. Analysis of Surface Waves in an Elastic Medium with a Porous Saturated Layer

   • A. V. Lebedev

   OriginalPaper 03 December 2019 Pages: 420 - 438

5. Synthetic Crystalline Quartz as an Optical Material for Power Optics

   • K. V. Vlasova
   • A. N. Konovalov
   • D. E. Silin

   OriginalPaper 02 December 2019 Pages: 439 - 446