@article{Bok-For-Zid-2010-1,
    author={Olivier Bokanowski and Nicolas Forcadel and Hasnaa Zidani },
    title={L¹-error estimates for numerical approximations of 
           Hamilton-Jacobi-Bellman equations in dimension 1 },
    doi={10.1090/S0025-5718-10-02311-2 },
    journal={Mathematics of Computation. },
    year={2010 },
    volume={79(271) },
    pages={1395--1426},
}