@article{UFA_2017_9_3_a17,
     author = {A. Sukhov},
     title = {Levi-flat world: a survey of local theory},
     journal = {Ufa mathematical journal},
     pages = {172--185},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2017_9_3_a17/}
}