A. F. Galkin
Melnikov Permafrost Institute of the Siberian Branch of the Russian Academy of Sciences
Russian Federation

Aleksandr F. Galkin, DSc in Engineering, professor, chief researcher, the Laboratory of Cryolithozone Geothermy

36, Permafrost Str., Yakutsk, 677010

M. N. Zheleznyak
Melnikov Permafrost Institute of the Siberian Branch of the Russian Academy of Sciences
Russian Federation

Mikhail N. Zheleznyak, DSc of Geological and Mineralogical Science, Corresponding Member of the Russian Academy of Sciences, chief researcher, the Laboratory of Cryolithozone Geothermy

36, Permafrost Str., Yakutsk, 677010

A. F. Zhirkov
Melnikov Permafrost Institute of the Siberian Branch of the Russian Academy of Sciences
Russian Federation

Aleksandr F. Zhirkov, PhD in Engineering, leading researcher, the Laboratory of Cryolithozone Geothermy 

36, Permafrost Str., Yakutsk, 677010