García-Melián, Jorge, Julio D. Rossi, y José C. Sabina De Lis. «Elliptic systems with boundary blow-up: Existence, uniqueness and applications to removability of singularities». Communications on Pure and Applied Analysis 15, n.º 2 (2016): 549-562. https://doi.org/10.3934/CPAA.2016.15.549.