Contents
Journal: Proceedings of Petrozavodsk State University @uchzap-petrsu
Section: Contents
Article in issue: 9 (103), 2009.
Free access
Short address: https://sciup.org/14751340
ID: 14751340
Journal: Proceedings of Petrozavodsk State University @uchzap-petrsu
Section: Contents
Article in issue: 9 (103), 2009.
Free access
Short address: https://sciup.org/14751340
ID: 14751340