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Message * Lavrentʹevskie Chtenii︠a︡ Respubliki Sakha (I︠a︡kutii︠a︡) Nauchnai︠a︡ Konferent︠s︡ii︠a︡ Studentov i Molodykh Uchenykh Rs(I︠a︡), Tezisy Dokladov, 14-15 Apreli︠a︡ 1998 - 5861340447 - 9785861340441