TY  - BOOK
AU  - SHERVATOV,V.G.
AU  - ARGUNOV,B.I.
TI  - Hyperbolic Functions: with configuration Theorems and Equivalent and Equidecomposable Figures
SN  - 9780486458861
U1  - 517.36 
PY  - 2007///
CY  - New York
PB  - Dover
ER  -