@article{SM_2006_197_9_a2,
     author = {K. M. Zuev},
     title = {Spectrum of the {Laplace{\textendash}Beltrami} operator on},
     journal = {Sbornik. Mathematics},
     pages = {1297--1308},
     year = {2006},
     volume = {197},
     number = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_9_a2/}
}