TY  - BOOK
AU  - Li Lin & Song Shu-Zhi
TI  - Solutions of Nonlinear Differential Equations: Existence Results Via the Variational Approach
SN  - 9789813108615
PB  - World Scientific
KW  - Mathematics
UR  - https://www.worldscientific.com/worldscibooks/10.1142/9955#t=toc
ER  -