@MISC{SIN_COS8.MIZ,
  AUTHOR = {Chanapat, Pacharapokin and Yamazaki, Hiroshi},
  TITLE = {Formulas and Identities of Hyperbolic Functions},
  DAY = {7},
  MONTH = {November},
  YEAR = {2005},
  ADDRESS1 = {Shinshu University\\Nagano, Japan},
  ADDRESS2 = {Shinshu University\\Nagano, Japan},
  SUMMARY = {In this article, we proved formulas of
    hyperbolic sine, hyperbolic cosine and hyperbolic tangent,
    and their identities.}}
