MURA, Ladislav - HAJDUOVÁ, Zuzana. Measuring Efficiency by Using Selected Determinants in Regional SMEs. - Registrovaný: Web of Science. In Entrepreneurship and Sustainability Issues : Peer-reviewed Scientific Journal. - Vilnius : The General Jonas Žemaitis Military Academy of Lithuania. ISSN 2345-0282, 2021, vol. 8, no. 3, pp. 487-503 online. VEGA 1/0813/19, GAAA 5-5/2020.