A. G. Khairutdinov
Sh. Marjani’s Institute of History, Academy of Sciences of the Republic of Tatarstan
Russian Federation

Aidar G. Khairutdinov, candidate of philosophical Sciences, associate Professor, senior researcher at Department of the history of religions, and social thought. Sh. Mardzhani Institute of History of Academy of Sciences of the Republic of Tatarstan.

R. G. Sharafeeva
N. I. Lobachevsky’s Scientific library of Kazan (Volga region) Federal University
Russian Federation

Raisa G. Sharafeeva, chief bibliographer H. I. Lobachevsky Scientific library of Kazan (Volga region) Federal University.