TY  - BOOK
A1  - / David G. Costa
TI  - an invitation to variational methods in differential equations in differential equations
PB  - كتابخانه مركزی و مركز اسناد دانشگاه مازندران
SN  - 92833562
UR  /book/92833562/an-invitation-to-variational-methods-in-differenti/
ER  -