@misc{Adamczyk_Adam_Tax,
 author={Adamczyk, Adam and Wiśniewski, Tomasz},
 howpublished={online},
 publisher={Wydawnictwo Uniwerstetu Marii Curie-Skłodowskiej},
 language={eng},
 title={Tax reliefs as safe guards against excessive taxation},
 type={artykuł},
 keywords={tax reliefs, progressive income taxation, marginal tax rates, tax evasion and avoidance, behavioral responses},
}