HALICKI, M.; KWATER, T. SPATIAL GRAPHIC INTERPRETATION OF THE FOSTER-HART FORMULA. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 18, n. 1, p. 38–47, 2017. DOI: 10.22630/MIBE.2017.18.1.04. Disponível em: https://qme.sggw.edu.pl/article/view/2478. Acesso em: 5 maj. 2024.