@misc{Leeuwen_Jan_van._Automata,,
 author={Leeuwen, Jan van. and Bakker, J. W. de.},
 howpublished={online},
 publisher={Springer-Verlag},
 language={eng, fre},
 title={Automata, languages and programming. Seventh colloquium Noordwijkerhout, the Netherlands. July 14-18, 1980},
 type={książka},
 type={dokument piśmienniczy},
}