Marina Pogudaeva, Aleksandr Plekhun Financial responsibility center as a budget management element of a medium-sized business entity // Russian Journal of Entrepreneurship. — 2015. — Vol. 16. — № 21. — p. 3723-3734. — doi: 10.18334/rp.16.21.2014
Ekaterina Mosina, Oksana Polyakova Small Business in Crisis Conditions: Realities and Prospects // Russian Journal of Entrepreneurship. — 2010. — № 4-2 (157). — p. 164-168. — URL: http://bgscience.ru/com/lib/2218