@misc{Lipparini_Paolo_An,
 author={Lipparini, Paolo},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Śląskiego},
 publisher={De Gruyter Open},
 language={eng},
 title={An Infinite Natural Product},
 type={czasopismo},
 keywords={ordinal number, infinite natural product, locally finitely Carruth extension, sum},
}