@article{DE_1989_25_5_a11,
     author = {V. E. Balabaev},
     title = {A three-dimensional analogue of the {Cauchy--Riemann} system for analytic functions of two complex variables},
     journal = {Differencialʹnye uravneni\^a},
     pages = {823--833},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_5_a11/}
}