TY  - BOOK
AU  - Shervatov, V.G.
TI  - Hyperbolic Functions: : With Configuration Theorems and Equivalent and Equidecomposable Figures 
SN  - 0-486-45886-5
U1  - 517.36 
PY  - 2007///
CY  - New York 
PB  - Dover Publications
N1  - The Hyperbolic Rotation - Homothetic transformations - Strains - The hyperbola - The hyperbolic ratation - Properties of the hyperbola - Hyperbolic Functions - The unit hyperbola and its equation - Natural Logarithms - Logarithms and the hyperbola - Euler`s formulasÌ
ER  -