MELNIKOV, V.V. Opportunistic Behavior in Public Procurement as a Barrier to Promotion of Innovation in the Russian Federation. Public Administration and Civil Service, Нур-Султан, Казахстан, n. 4, p. 56–63, 2014. Disponível em: https://journal.apa.kz/index.php/path/article/view/507. Acesso em: 3 nov. 2025.