P. Pudil, P. Somol, I. Mikova, V. Pribyl, and L. Komarkova, “Further education, its methods and selected characteristics of organisations: an empirical study of their association with organisations profitability”, BMEE, vol. 19, no. 1, pp. 111–130, Apr. 2021, doi: 10.3846/bmee.2021.13952.