@article{DAN_1974_218_3_a3,
     author = {L. V. Zhizhiashvili},
     title = {On conjugate functions of $n$ variables},
     journal = {Doklady Akademii Nauk},
     pages = {517--518},
     publisher = {mathdoc},
     volume = {218},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_218_3_a3/}
}