@ARTICLE{Wawrzyniak_Dariusz_Introduction_2019, author={Wawrzyniak, Dariusz}, number={No 1}, journal={Finanse}, howpublished={online}, year={2019}, publisher={Komitet Nauk o Finansach PAN}, type={Introduction}, title={Introduction}, URL={http://www.czasopisma.pan.pl/Content/116158/PDF/19_Intro.pdf}, }