Հոդված 316 G.M. Aleksanyan A. N. Valyaev S. V. Kazakov A. A. Shamaeva O. V. Stepanets H. D. Passell V. P. Solodukhin NATO Science for Peace and Security Series C: Environmental Security, Threats to Global Water Security 1 287-304 2009 http://link.springer.com/book/10.1007/978-90-481-2344-5