Abstract: The active growth of the use of information technologies has affected the methodology of historiographical research. This article uses the social network modeling technology for the analysis of the Russian historiography of the 2010s, devoted to various aspects of the Mari Territory and local Mari groups’ history. The information capabilities of the Scientific Electronic Library eLIBRARY.RU which contains the RSCI bibliographic database were used to achieve this aim. A selection of scientific papers on the studied subject matter was formed on the stated resource portal. It includes 627 articles from journals and conference proceedings authored by more than 270 experts in historical and related disciplines. From all the articles a pool of highly cited publications was identified, including 72 scientific papers, on the basis of which a network graph was created in the Gephi program, which allowed to visualize the connections between selected papers. The automated graph stacking helped to make 13 large clusters of publications as well as a number of "peripheral" publications. The article describes in detail the methods and technologies used in the research conduction, shows the general description of the identified "topography" of the stated subject area and its development trends, and describes the most popular research topics at the present stage. The study is novel in that it uses citation data to identify and analyze the structure of communication in this subject area. The conducted social network analysis of the scientific literature has shown that the considered subject area of modern Russian historiography demonstrates a pronounced progress in its development, as evidenced by a significant thematic expansion of research, a large and geographically wide of authors’ corpus, the involvement of a number of new historical sources, the use of new research approaches, as well as significant grant support for research.

Abstract: The article is devoted to the problem of forming a source complex on the history of the Spaso-Preobrazhensky Cathedral of the Nizhny Novgorod Kremlin of the XIX - early XX centuries in order to create its scientifically based virtual reconstruction. As a result of many years of work, the author has collected a significant documentary base on the history of the temple, which includes four large groups of sources: written, pictorial (graphic), cartographic and material (museum exhibits). Each of them is analyzed in detail with the allocation of materials that are most important for the three-dimensional reconstruction of the designated historical object. The paper also discusses methods and technologies for analysis, verification and initial digital processing of pictorial sources from its composition. The scientific novelty of the study is expressed in the fact that for the first time a relevant source complex on the history of the Spaso-Preobrazhensky Cathedral of the 1830s was formed, which radically distinguishes this study from previous excursion and tourist virtual reconstructions of this temple. In addition, the technique of digital processing of visual sources and their translation into 3D format, developed by the author and presented in this article, has a certain novelty, which allows to preserve their original appearance as much as possible. The collected documentary base on the history of the Spaso-Preobrazhensky Cathedral of the Nizhny Novgorod Kremlin allowed us to assert the possibility of its authentic historical virtual reconstruction.