@article{JCA_2002_9_1_JCA_2002_9_1_a8,
     author = {D. McCaffrey and S. P. Banks},
     title = {Lagrangian {Manifolds,} {Viscosity} {Solutions} and {Maslov} {Index}},
     journal = {Journal of convex analysis},
     pages = {185--224},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2002},
     url = {http://geodesic.mathdoc.fr/item/JCA_2002_9_1_JCA_2002_9_1_a8/}
}