TY  - BOOK
AU  - Bartsch,Thomas
TI  - Topological methods for variational problems with symmetries
T2  - Lecture notes in mathematics
SN  - 354057378X (Berlin : acidfree paper)
PY  - 1993///
CY  - Berlin , New York 
PB  - Springer-Verlag
KW  - Critical point theory (Mathematical analysis)
KW  - Symmetry groups
KW  - Calculus of variations
N1  - Includes bibliographical references (p. [142]-149) and index
ER  -