@misc{Lupa_Maria_Solutions,
 author={Lupa Maria},
 howpublished={online},
 publisher={Wydaw. Politechniki Częstochowskiej},
 language={eng},
 title={Solutions of some functional equations in a class of generalized Hölder functions},
 type={artykuł},
 keywords={iteractive functional equation, generalized Hölder condition},
}