Schumann, T. ., i A. . Maksimow. „Fostering Regional Economic Development by Promoting Cooperative Banking Structures in Rual Areas – Lessons Learned in the Russian Federation After 1990”. Bezpieczny Bank, t. 71, nr 2, wrzesień 2018, s. 55-85, doi:10.26354/bb.3.2.71.2018.