@article{Polyakov_2020, title={Atmospheric HCFC-22 total columns near St. Petersburg: stabilization with start of a decrease}, volume={41}, ISSN={1366-5901}, url={http://dx.doi.org/10.1080/01431161.2020.1717668}, DOI={10.1080/01431161.2020.1717668}, number={11}, journal={International Journal of Remote Sensing}, publisher={Informa UK Limited}, author={Polyakov, Alexander and Virolainen, Yana and Poberovskiy, Anatoliy and Makarova, Maria and Timofeyev, Yuriy}, year={2020}, month=feb, pages={4365–4371} }