@article{JCA_2009_16_1_JCA_2009_16_1_a15,
     author = {L. Beck},
     title = {Boundary {Regularity} for {Elliptic} {Problems} with {Continuous} {Coefficients}},
     journal = {Journal of convex analysis},
     pages = {287--32},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/JCA_2009_16_1_JCA_2009_16_1_a15/}
}