@article{UZERU_2005_3_a5,
     author = {T. A. Harutyunyan},
     title = {The problem of own values and own functions in the toroidal cavity},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {64--72},
     publisher = {mathdoc},
     number = {3},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2005_3_a5/}
}