Source List
Current global and regional changes in geosystems: Materials of All-Russia Scientific Conference, devoted to the 200th anniversary of Kazan university. – Kazan, 18-21 October 2004 – Page 492-493.
Current global and regional changes in geosystems: Materials of All-Russia Scientific Conference, devoted to the 200th anniversary of Kazan university. – Kazan, 18-21 October 2004 – Page 492-493.