TY  - BOOK
AU  - Ovsyannikov L V Et Al
TI  - Lectures on the Theory of Group Properties of Differential Equations
SN  - 9789814460828
PB  - World Scientific
KW  - Mathematics
UR  - https://www.worldscientific.com/worldscibooks/10.1142/8762#t=toc
ER  -