@article{DAN_1961_138_6_a0,
     author = {E. A. Haroutunian and A. G. Gul'misaryan and S. G. Ovsepyan},
     title = {Some homogeneous boundary-value problems for the equation of the vibrating string},
     journal = {Doklady Akademii Nauk},
     pages = {1255--1258},
     publisher = {mathdoc},
     volume = {138},
     number = {6},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_6_a0/}
}