Dyfyniad APA

Ovsiannikov, L. V. (1982). Group analysis of differential equations. Academic Press.

Dyfyniad Arddull Chicago

Ovsiannikov, L V. Group Analysis of Differential Equations. New York: Academic Press, 1982.

Dyfyniad MLA

Ovsiannikov, L V. Group Analysis of Differential Equations. Academic Press, 1982.

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