ŁUKASIEWICZ, Piotr; KARPIO, Krzysztof; ORŁOWSKI, Arkadiusz. Changes of distributions of personal incomes in US from 1998 to 2011. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 13, n. 2, p. 96–106, 2012. Disponível em: https://qme.sggw.edu.pl/article/view/3539. Acesso em: 3 kwi. 2025.