J. S. Petrović, D. M. Dobrosavljević, and M. M. Simić, “Development of the School System and Pedagogics in Serbia During the First Half of 20th Century – Major Scientific and Societal Influences”, Zb rad Filoz fak Priština, vol. 49, no. 2, Jun. 2019, doi: 10.5937/zrffp49-21393.