@misc{Bader_Ralf_Fixed,
 author={Bader, Ralf},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Fixed Point Theorems for Compositions of Set-Valued Maps with Single-Valued Maps},
 keywords={matematyka},
}