List of citations in Numdam for : Remarks on uniqueness results of the first eigenvalue of the p-laplacian

Annales de la Faculté des sciences de Toulouse : Mathématiques, Serie 5, Volume 9 (1988) no. 1, pp. 65-75.

ESAIM: Control, Optimisation and Calculus of Variations, Volume 21 (2015) no. 1, pp. 60-72.

ESAIM: Control, Optimisation and Calculus of Variations, Volume 10 (2004) no. 1, pp. 28-52.

Rendiconti del Seminario Matematico della Università di Padova, Volume 96 (1996), pp. 143-175.