Ovsiannikov, L. V. (1982). Group analysis of differential equations. Academic Press.
Citación estilo ChicagoOvsiannikov, L V. Group Analysis of Differential Equations. New York: Academic Press, 1982.
Cita MLAOvsiannikov, L V. Group Analysis of Differential Equations. Academic Press, 1982.
Warning: These citations may not always be 100% accurate.