@misc{Krzyż_Jan_G._(1923-2009)_Some,
 author={Krzyż, Jan G. (1923-2009)},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Some Remarks on the Isomorphism of Fuchsian Groups},
 keywords={Fuchsian groups, isomorphism},
}