@misc{Hajder_Mirosław_Alternative,
 author={Hajder, Mirosław and Mazurek, Mirosław},
 howpublished={online},
 publisher={Wydaw. Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Alternative methods of designing multi channel optical communication systems},
}