1. 1) Azhaev AN (1979) Fiziologo-gigienicheskie aspekty deistviya vysokih I nizkih temperatur. (Physiological and hygienic aspects of high and low temperatures effects), 259, Nauka, Moscow (in Russian).
2. 2) Afanasieva RF, Burmistrova OV (2001) Cold stress and its prevention. (Holodovoi stress i ego profilaktika.) Meditsina truda I promyshlennaya ecologia 8, 7-9 (in Russian).
3. 3) Maistrah EV (1975) Human cooling pathologic physiology (Patologicheskaya fiziologiya ohlazhdeniya cheloveka), 215, Meditsina, Leningrad (in Russian).
4. 4) Holmér I (1998) Evaluation of thermal stress in cold regions ―a strain assessment strategy. In: Problems with cold work, Holmér I and Kuklane K (Eds.), Arbete Och Hälsa 18, 31-8, National Institute for Working Life, Solna.
5. 5) Burton A, Edholm O (1957) Chelovek v usloviyah holoda (Man in a Cold Environment), 333, Inostrannaya literatura, Moscow (in Russian).