TY  - BOOK
AU  - Postnikov,M.M.
TI  - The variational theory of geodesics
SN  - 0486631664
PY  - 1983///
CY  - New York: 
PB  - Dover Publications, 
KW  - INIST
KW  - GEOMETRIA DIFERENCIAL
KW  - GEOMETR� A
KW  - GEODESICS
ER  -