@misc{Quittner_Pál._Problems,,
 author={Quittner, Pál.},
 howpublished={online},
 publisher={Akadémiai Kiadó},
 language={pol},
 title={Problems, Programs, Processing, Results: Software Techniques for Sci-tech Programs},
 type={książka},
 type={dokument piśmienniczy},
}