\         Petr  Mitosinka                 Charles University
   )  {signed as Peta or PMS too}   Faculty of Mathematics and Physics
  (                                       Prague, Czech Republic
   )  E-mail: PMIT2218@mff.cuni.cz
  /   WWW   : http://www.ms.mff.cuni.cz/acad/webik/~pmit2218/
/______________________________________________________________________