@misc{Elin_Mark_Coefficient,
 author={Elin, Mark and Jacobzon, Fiana},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={eng},
 type={artykuł},
 title={Coefficient body for nonlinear resolvents},
 keywords={nonlinear resolvents, coefficient body},
}