  In this paper we provide a second variation formula for L-minimal Lagrangian
submanifolds in a pseudo-Sasakian manifold. We apply it to the case of
Lorentzian-Sasakian manifolds and relate the L-stability of L-minimal
Legendrians in a Sasakian M to their L-stability in an associated
Lorentzian-Sasakian structure on M.
