@article{DAN_1961_141_2_a4,
     author = {E. G. Gol'shtein},
     title = {The {Chebyshev} best approximation problem in the complex domain with supplementary conditions 
},
     journal = {Doklady Akademii Nauk},
     pages = {274--276},
     publisher = {mathdoc},
     volume = {141},
     number = {2},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_2_a4/}
}