1. Gas emission from coal during fracturing

   • V. V. Khodot
   • M. F. Yanovskaya
   • Yu. S. Premysler

   Rock Mechanics and Rock Pressure Pages: 551 - 557

2. Change in rock stress during working of a coal seam

   • G. I. Gritsko
   • B. V. Vlasenko

   Rock Mechanics and Rock Pressure Pages: 558 - 562

3. Preliminary analysis of roof behavior in longwalls

   • A. G. Shadrin
   • V. M. Baukov

   Rock Mechanics and Rock Pressure Pages: 563 - 567

4. Results of experiments on the sequential reduction of resistance and initial thrust of omkt hydraulic support units

   • S. T. Kuznetsov
   • V. A. Bessonikov
   • D. G. Pekarskii

   Rock Mechanics and Rock Pressure Pages: 568 - 576

5. Ground movement induced by open-cut and undergound mining

   • L. V Savkov

   Rock Mechanics and Rock Pressure Pages: 577 - 583

6. Choice of relative cutting forces in calculations of the principal drive powers of rotary bucket-wheel excavators of various sizes

   • V. M. Vladimirov

   Mechanization and Automation in Mining Pages: 584 - 590

7. Pneumatic vibration insulators for hand-held pneumatic hammers

   • A. M. Petreev

   Mechanization and Automation in Mining Pages: 591 - 597

8. Determining the air-flow directions in a ventilation network

   • S. T. Tolmachev

   Mine Aerodynamics Pages: 598 - 603

9. Laboratory method of measuring the aerodynamic characteristics of mixtures of granular material

   • S. P. Alekhichev
   • L. A. Puchkov

   Mine Aerodynamics Pages: 604 - 608

10. Geothermal conditions in deep mines of the sverdlovugol' group

    • G. V. Duganov
    • L. N. Kukhar'
    • V. S. Sklyar

    Mine Aerodynamics Pages: 609 - 612

11. Geothermal studies in the Prokop'evsk region of the Kuzbass

    • L. P. Tomashevskii
    • L. S. Sen'ko
    • M. A. Kanash

    Mine Aerodynamics Pages: 613 - 615

12. Method of classifying rocks by multiple measurement of their physical properties

    • É. I. Arsh
    • L. A. Krasin
    • G. R. Nosov

    New Methods and Equipment Pages: 616 - 621

13. Measuring the thermophysical characteristics of anisotropi materials by means of insulating caps

    • Sh. I. Oniani
    • R. A. Sarychev
    • A. F. Begunkova

    New Methods and Equipment Pages: 622 - 626

14. Determining the elastic constants and fracture characteristics of a rock acted on by a plane wavefornt

    • V. V. Mishin
    • I. S. Tverdokhleb

    Brief Communications Pages: 627 - 630

15. Constructing standard strength tables for rocks

    • I. V. Makarov

    Brief Communications Pages: 631 - 632

16. Standard strengths of rocks

    • B. V. Matveev

    Brief Communications Pages: 633 - 635

17. Ventilation of a high-output shield face

    • A. G. Kontsov
    • Yu. F. Morozov

    Brief Communications Pages: 636 - 639

18. Trolley/battery powered dump truck for mines

    • S. S. Muzgin
    • D. B. Kozhakmedov

    Brief Communications Pages: 640 - 644

19. First all-union conference on the rheology of strata

    • N. S. Polyakov
    • M. I. Rozovskii
    • V. T. Glushko

    Chronicles Pages: 645 - 645

20. International scientific conference on improved technique and technology of open-pit mineral extraction

    • E. I. Vasil'ev

    Chronicles Pages: 646 - 646