CUPINI, G.; LEONETTI, F.; MASCOLO, E. Existence of weak solutions for elliptic systems with p,q-growth. Annales Fennici Mathematici, [S. l.], v. 40, n. 2, p. 645–658, 2015. DOI: 10.5186/aasfm.2015.4035. Disponível em: https://afm.journal.fi/article/view/135564. Acesso em: 6 may. 2024.