@article{AIHPC_2017__34_5_1141_0,
     author = {Yu, Hui},
     title = {         \protect\emph{W}         \protect\textsuperscript{            \protect\emph{\ensuremath{\sigma}},\protect\emph{\ensuremath{\epsilon}}         }-estimates for nonlocal elliptic equations},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {1141--1153},
     publisher = {Elsevier},
     volume = {34},
     number = {5},
     year = {2017},
     doi = {10.1016/j.anihpc.2016.09.003},
     mrnumber = {3742518},
     zbl = {1378.35051},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2016.09.003/}
}