@MISC{PDIFF_5.MIZ,
  AUTHOR = {Takao Inou\'e},
  TITLE = {Second-order Partial Differentiation of Real Ternary Functions},
  SECTION1 = {Second-order Partial Derivatives},
  SECTION2 = {Main Properties of Second-order Partial Derivatives},
  DAY = {26},
  MONTH = {January},
  YEAR = {2010},
  ADDRESS1 = {Inaba 2205, Wing-Minamikan, Nagano\\Nagano\\Japan},
  SUMMARY = {In this article, we shall extend the
  result of \cite{PDIFF_3.ABS} to discuss second-order
  partial differentiation of real ternary functions
  (refer to \cite{PDIFF_1.ABS} and \cite{Rudin:1976}
  for partial differentiation).}}

@BOOK{Rudin:1976,
 AUTHOR={Rudin, Walter},
 TITLE={Principles of Mathematical Analysis},
 PUBLISHER={MacGraw-Hill},
 YEAR=1976}
