@article{10_1007_s10587_013_0037_x,
     author = {Wan, Dongrui},
     title = {Estimates for $k${-Hessian} operator and some applications},
     journal = {Czechoslovak Mathematical Journal},
     pages = {547--564},
     publisher = {mathdoc},
     volume = {63},
     number = {2},
     year = {2013},
     doi = {10.1007/s10587-013-0037-x},
     mrnumber = {3073978},
     zbl = {06236431},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0037-x/}
}