Tsitlenok V.S. «About the substance and the tenor of the concept «The Competition in the WorldEconomy» » // 2008. №3 (4) C.13-18
Krivenko Ilya A., Naydenov Alexey S. «Influence of administrative barriers and institutional environment on the dynamics of shadow economy» // Tomsk State University Journal 2013. №377 C.117-122