KEY FACTORS DETERMINING THE ECOLOGICAL NICHE OF THE HIMALAYAN MARMOT, MARMOTA HIMALAYANA HODGSON (1841) Article Nikol'skii A.A., Ulak A. Russian Journal of Ecology. Vol. 37. 2006. P. 46-52
THE NORMALITY OF SOME ELLIPTIC FUNCTIONAL-DIFFERENTIAL OPERATORS OF SECOND ORDER Article Varfolomeev E.M. Russian Mathematical Surveys. Vol. 61. 2006. P. 184-185