MURA, Ladislav - HAJDUOVÁ, Zuzana. Small and Medium Enterprises in Regions - Empirical and Quantitative Approach. In Insights into Regional Development. - Vilnius : Entrepreneurship and Sustainability Center. ISSN 2669-0195, 2021, vol. 3, no. 2, pp. 252-266 online. VEGA 1/0813/19, GAAA 5-5/2020, VEGA 1/0240/20.