Kuczma, Marek. “On Some Analogies Between Measure and Category and Their Applications in the Theory of Additive Functions”. Annales Mathematicae Silesianae 1 (September 30, 1985): 155–162. Accessed May 7, 2025. https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14346.