@inproceedings{sgem2014s19079, title = {VARIABILITY OF PARTICULATE MATTER IN SAINT-PETERSBURG MEGACITY AIR WITHIN CLIMATIC TIME SCALE}, author = {George G. Gogoberidze}, booktitle = {14th International Multidisciplinary Scientific GeoConference SGEM 2014, Energy and Clean Technologies, Vol. 14, Book 4, Volume 2}, year = {2014}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2014/b42/s19.079} }