@MISC{PDIFF_1.MIZ,
  AUTHOR = {Endou, Noboru and Shidama, Yasunari and Miyajima, Keiichi},
  TITLE = {Partial Differentiation on Normed Linear Spaces ${\cal R}^n$},
  SECTION1 = {Preliminaries},
  SECTION2 = {Partial Differentiation},
  SECTION3 = {Linearity of Partial Differential Operator},
  DAY = {6},
  MONTH = {June},
  YEAR = {2007},
  ADDRESS1 = {Gifu National College of Technology\\Gifu, Japan},
  ADDRESS2 = {Shinshu University\\Nagano},
  ADDRESS3 = {Ibaraki University, Faculty of Engineering\\Hitachi, Ibaraki},
  SUMMARY = {In this article, we define the partial differentiation of
   functions of real variable and prove the linearity of this operator
   \cite{Schwartz:1981}.}}

@BOOK{Schwartz:1981,
 AUTHOR = {Schwartz, Laurent},
 TITLE = {Cours d'analyse},
 PUBLISHER = {Hermann},
 YEAR = 1981}
