Variational approach to impulsive differential equations with Dirichlet boundary conditions. Chen, Huiwen, Li, Jianli (2010) Boundary Value Problems [electronic only]
Variational inequalities for energy functionals with nonstandard growth conditions. Fuchs, Martin, Li, Gongbao (1998) Abstract and Applied Analysis
Variational principles for differential equations with symmetries and conservation laws. II. Polynomial differential equations. Ian M. Anderson, Juha Pohjanpelto (1995) Mathematische Annalen
Variational principles for differential equations with symmetries and conservation laws. I. Second order scalar equations. Ian M. Anderson, Juha Pohjanpelto (1994) Mathematische Annalen
Viscosity solutions of two classes of coupled Hamilton-Jacobi-Bellman equations. Xiao, Mingqing, Başar, Tamer (2001) Journal of Inequalities and Applications [electronic only]