@article{10_4153_CJM_2012_059_3,
     author = {Bernard, Patrick and Zavidovique, Maxime},
     title = {Regularization of {Subsolutions} in {Discrete} {Weak} {KAM} {Theory}},
     journal = {Canadian journal of mathematics},
     pages = {740--756},
     year = {2013},
     volume = {65},
     number = {4},
     doi = {10.4153/CJM-2012-059-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2012-059-3/}
}