@article{CRMATH_2011__349_11-12_637_0,
     author = {Moritz Kassmann},
     title = {A new formulation of {Harnack's} inequality for nonlocal operators},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {637--640},
     publisher = {Elsevier},
     volume = {349},
     number = {11-12},
     year = {2011},
     doi = {10.1016/j.crma.2011.04.014},
     language = {en},
}