Chuturkova R, Stefanova M. 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 . JSAR [Internet]. 2023 Mar. 7 [cited 2024 Nov. 22];4(1):163-70. Available from: https://jsar.ftn.shu.bg/index.php/jsar/article/view/95