Boykova A.V. Formation of retail trade assortment in the digital economy // Russian Journal of Entrepreneurship. — 2018. — Vol. 19. — № 11. — p. 3323-3334. — doi: 10.18334/rp.19.11.39573
Irina Lisovskaya, Mariya Marchenko, Tatyyana Novikova Development of Calculation Method of Advanced Payment Size Limit Arranged by Internet Shops for Bulk Purchasers // Creative Economy. — 2011. — № 12 (60). — p. 123-128. — URL: http://bgscience.ru/com/lib/730