For citations:

 ,  ,  ,  , Opekunova M.G., Zahkharyan L.S., Vokueva O.V. Konstantinova A. F. Ecological monitoring of pollution on the territory of Vasilievsky island, Saint-Petersburg, using the data on po-pulus balsamifera. Proceedings of the Russian Geographical Society. 2011;143(2):31-44. (In Russ.)