@article{DAN_1963_153_2_a7,
     author = {L. I. Ronkin},
     title = {A property of the distribution of singularities on the boundary of a polycylinder and its application 
},
     journal = {Doklady Akademii Nauk},
     pages = {278--281},
     publisher = {mathdoc},
     volume = {153},
     number = {2},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_153_2_a7/}
}