Yaneva, Z., Georgieva, N. and Pavlov, A. 2016. Low-temperature plasma-modified zeolite (LTPMZ) vs. natural Bulgarian zeolite (NBZ) – Comparative physicochemical, UV/VIS and FTIR studies. Macedonian Journal of Chemistry and Chemical Engineering. 35, 1 (Apr. 2016), 97–105. DOI:https://doi.org/10.20450/mjcce.2016.850.