@InProceedings{Navara:Zakopane14,
  IS = { zkontrolovano 03 Jan 2015 },
  UPDATE  = { 2014-12-19 },
  author =      {Navara, Mirko},
  affiliation = {13133},
  title =       {Symmetric differences and probabilities},
  year =        {2014},
  pages =       {36--37},
  booktitle =   {Applications of Algebra~18},
  publisher =   {Jan D{\l}ugosz University},
  address =     {Cz{\c e}stochowa, Poland},
  isbn =        {none},
  authorship = { 100 },
  book_pages =  {46},
  month =       {March},
  day =         {6--11},
  venue =       {Zakopane, Poland},
  organization ={},
  annote =      {Symmetric differences and probabilities},
  keywords =    {Symmetric difference, orthomodular poset, set representation, state,
probability},
  c_annote =    {},
  note =        {abstract},
  project =    { SGS12/187/OHK3/3T/13 },
psurl       = { [PDF] },
www         = {http://www.ajd.czest.pl/~aalcs/index_en.php},
}