RAITUMS, Uldis. On dependence of sets of functions on the mean value of their elements. Mathematical Modelling and Analysis, [S. l.], v. 14, n. 1, p. 91–98, 2009. DOI: 10.3846/1392-6292.2009.14.91-98. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/6525. Acesso em: 2 jul. 2025.