@article{SM_1991_69_1_a10,
     author = {A. S. Sadullaev and R. Madrakhimov},
     title = {Smoothness of subharmonic functions},
     journal = {Sbornik. Mathematics},
     pages = {179--195},
     year = {1991},
     volume = {69},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1991_69_1_a10/}
}