@article{Shcherbak_2013 author = {V. I. Shcherbak and N. V. Maistrova and Natalya Ye. Semenyuk}, title = {Some Hazards to Biodiversity and Ecological State of the Hydroecosystems of the Shatsk National Natural Park}, journal = {Hydrobiological Journal}, issn = {0018-8166}, year = {2013}, volume = {49}, number = {6}, pages = {3--16} }