TY  - BOOK
AU  - Uspenskii, V.A
TI  - Some applications of mechanics to mathematics Vol.3
T2  - Popular lectures on mathematical series
U1  - 530.15 
PY  - 1961///
CY  - New York
PB  - Pergamon Press
KW  - Physics
KW  - Problem on a tangent to a circle
KW  - Problem on a tangent to a ellipse
KW  - Least potential energy
ER  -