Djadli, Zindine. «Nonlinear Elliptic Equations Involving Critical Sobolev Exponent on Compact Riemannian Manifolds in Presence of Symmetries». Revista Matemática Complutense 12, no. 1 (enero 1, 1999): 201. https://doi.org/10.5209/rev_REMA.1999.v12.n1.17212.