TY  - BOOK
AU  - Lanczos, Cornelius
TI  - Variational principles of mechanics
T2  - Mathematical Expositions
SN  - 0802017436
U1  - 531.0151564 
PY  - 1977///
CY  - Toronto
PB  - University of Toronto press
KW  - Physics
KW  - Mechanics, Analytic
KW  - Variational principles
ER  -