@techreport{TR-IC-13-10,
   number = {IC-13-10},
   author = {Alex Bredariol Grilo and Arnaldo Vieira Moura},
   title = {On finite automata with quantum and classical states},
   month = {April},
   year = {2013},
   institution = {Institute of Computing, University of Campinas},
   note = {In English, 15 pages.
    \par\selectlanguage{english}\textbf{Abstract}
       Finite automata with quantum and classical states were proposed
       to   study  the  influence  of  Quantum  Mechanics  in  simpler 
       computational  devices.  In  this  work,  we  study  the  topic 
       focusing  on  computability  and  complexity questions. We show
       results   presented   in  the  literature  involving  languages 
       recognizability and closure properties and we then present some
       partial results on languages not recognized by the model.
  }
}