@article{DAN_1974_216_1_a0,
     author = {A. V. Aizenshtat},
     title = {On the {Riemann} and {Haseman} problems on a countable set of contours},
     journal = {Doklady Akademii Nauk},
     pages = {13--16},
     publisher = {mathdoc},
     volume = {216},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_216_1_a0/}
}