Fast and heteroclinic solutions for a second order ODE. Arias, Margarita (2006) Electronic Journal of Differential Equations (EJDE) [electronic only]
Fixed points and minimax inequalities. Balaj, Mircea, Erzse, Daniel (2004) Acta Universitatis Apulensis. Mathematics - Informatics
Formules min-max pour les vitesses d'ondes progressives multidimensionnelles François Hamel (1999) Annales de la Faculté des sciences de Toulouse : Mathématiques
Further results related to a minimax problem of Ricceri. Cordaro, Giuseppe (2005) Journal of Inequalities and Applications [electronic only]