1959 Yakhontov V.V. [La vie animale. Animal Life]. Uzbekistan. Economic-Geographical Characteristic,Tashkent, Published on Uzbek Academy of Sciences, 61.
1972 Yakovlev E.P. [Nombre des marmottes du Tadjikistan et propositions de chasse. The numbers of marmots in Tadjikistan and proposals on hunting them]. Research Information, Bulletin of Research Institute of Hunting and Hunting Farms, 37-39, 30-32.
1980 Yakovlev E.P. [La chasse à la marmotte en Ouzbekistan et au Tadjikistan. Marmot hunting in Uzbekistan and Tadjikistan]. Marmots. Biocenotic and Practical Importance, Moscow: Nauka Publishers, 195 -197.
1967 Yakovlev E.P. & Derlyatko K.I. O prostranstvennoïstrouktoure poselenii krasnogo sourka v Tadjikistane [Sur la structure spatiale des populations de marmottes rouges au Tadjikistan. Spatial structure of populations of red marmots in Tajikistan]. V kn. Resoursy faouny sourkov v SSSR. Materialy soveshaniya 27-29 marta 1967 g. M., Naouka.