[1]
I. IGNATOV, N. VALCHEVA, T. P. POPOVA, N. NESHEV, F. HUETHER, and A. I. IGNATOV, “PHYSICOCHEMICAL AND MICROBIOLOGICAL RESULTS FROM HOT MINERAL WATER IN THE VILLAGE OF VARVARA, DISTRICT OF PAZARDZHIK, BULGARIA”, UPJOZ, vol. 43, no. 9, pp. 31–40, May 2022.