TY  - BOOK
AU  - Zhang, Zhitao
TI  - Variational, topological and partial order methods with their applications
SN  - 9783642307089
U1  - 515.1:517.9 
PY  - 2013///
CY  - New York
PB  - Springer
KW  - DIFFERENTIAL EQUATION
KW  - TOPOLOGY
ER  -