@InProceedings{KukovaNavara:Zakopane13,
  IS = { zkontrolovano 25 Jan 2014 },
  UPDATE  = { 2014-01-06 },
  author =      {Kukov{\' a}, M{\' a}ria and Navara, Mirko},
  title =       {Various generalizations of the principle of inclusion and exclusion},
  year =        {2013},
  pages =       {20--21},
  booktitle =   {Applications of Algebra~17},
  editor =      {},
  publisher =   {Jan D{\l}ugosz University},
  address =     {Cz{\c e}stochowa, Poland},
  isbn =        {none},
  authorship = {50-50},
  book_pages =  {51},
  month =       {March},
  day =         {4--9},
  venue =       {Zakopane, Poland},
  annote =      {The principle of inclusion and exclusion is generalized to fuzzy sets and IF-sets.},
  keywords =    {The principle of inclusion and exclusion, fuzzy set, IF-set},
  importance =  {0},
  note =        {abstract},
  project =    {MSM 6840770038},
psurl       = {[PDF]},
www         = {http://www.ajd.czest.pl/~aalcs/index_en.php},
}