@article{Novikova2013integrated,
author={Novikova, L.. and Demina, G.. and Stepanova, N.. and Grashina, D..},
title={Integrated Assessment of Kazan’s Atmospheric Air Quality According to Chemical and Biological Monitoring},
journal={Safety in Technosphere},
publisher={INFRA-M Academic Publishing LLC.},
year={2013},
pages={20-23},
volume={2},
issue={6},
}