Chuturkova, R. ., and M. . Stefanova. “ASSESMENT OF NOx EMISSIONS FROM NITRIC ACID PRODUCTION AND THEIR EFFECT UPON AMBIENT AIR QUALITY IN DEVNYA REGION : ASSESMENT OF NOx EMISSIONS FROM NITRIC ACID PRODUCTION AND THEIR EFFECT UPON AMBIENT AIR QUALITY IN DEVNYA REGION”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, vol. 4, no. 1, Mar. 2023, pp. 163-70, doi:10.46687/jsar.v4i1.95.