Group analysis of differential equations
Ovsiannikov, L.V
Group analysis of differential equations L.V. Ovsiannikov - New York Academic Press 1982 - xvi 416
0125316801
10.01 / OVSI
Group analysis of differential equations L.V. Ovsiannikov - New York Academic Press 1982 - xvi 416
0125316801
10.01 / OVSI