Harnack type estimates for nonlinear elliptic systems and applications Jérôme Busca; Boyan Sirakov — 2004 Annales de l'I.H.P. Analyse non linéaire
First moments of energy and convergence to equilibrium. Busca, Jerome — 2001 Electronic Journal of Differential Equations (EJDE) [electronic only]
Nonlinear eigenvalues and bifurcation problems for Pucci's operators Jérôme Busca; Maria J. Esteban; Alexander Quaas — 2005 Annales de l'I.H.P. Analyse non linéaire