S. Stamenković Stojanović, I. Karabegović, V. Beškoski, N. Nikolić, and M. Lazić, “Bacillus based microbial formulations: Optimization of the production process”, Hem Ind, vol. 73, no. 3, pp. 169–182, Jul. 2019, doi: 10.2298/HEMIND190214014S.