TY - JOUR AU - Musso, Monica AU - Pejsachowicz, Jacobo AU - Portaluri, Alessandro TI - Morse index and bifurcation of $p$-geodesics on semi riemannian manifolds JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2007 SP - 598 EP - 621 VL - 13 IS - 3 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv:2007037/ DO - 10.1051/cocv:2007037 LA - en ID - COCV_2007__13_3_598_0 ER -