ŞAHIN, M. T.; NIEMETS, L.; YILMAZ, M.; KLIUCHKO, L.; VAROL, ÇIĞDEM. Contrasting innovation dynamics of professional-technological knowledge intensive business services in metropolitan areas. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology, n. 59, p. 260-276, 1 Dec. 2023.