Fedoseev R.V., Bogatyrev E.D., и Mariskin O.I., «BASIC MODELS OF THE NOBILITY COMMERCIAL AND INDUSTRIAL ENTREPRENEURSHIP IN THE SECOND HALF OF THE XIX CENTURY (ACCORDING TO THE MIDDLE VOLGA REGION DATA)», Scientific Journal of Pedagogy and Economics, вып. 5, сс. 257–264, окт. 2021.