@InProceedings{Navara:Zakopane12,
  IS = { zkontrolovano 15 Jan 2013 },
  UPDATE  = { 2012-12-27 },
  author =      { Navara, Mirko },
  title =       {What determines quantum structures?},
  year =        {2012},
  pages =       {36--36},
  booktitle =   {Applications of Algebra~16},
  publisher =   {Jan D{\l}ugosz University},
  address =     {Cz{\c e}stochowa, Poland},
  isbn =        {},
  book_pages =  {53},
  month =       {February --March},
  day =         {27--3},
  venue =       {Zakopane, Poland},
  annote =      {We answer the question which derived structures
    determine an orthomodular lattice.},
  keywords =    {orthomodular lattice, free algebra, 
    automorphism group, state space, lattice of subalgebras},
  importance =  {0},
  project =     {without acknowledgement},
  note =        {abstract},
  psurl =       {[PDF]},
  www =         {http://www.ajd.czest.pl/~aalcs/index_en.php},
}