@article{RM_1966_21_5_a13,
     author = {E. L. Nol'de},
     title = {Nonnegative eigenfunction of the {Laplace{\textendash}Beltrami} operator on symmetric spaces with a~complex semisimple group of motions},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1966},
     volume = {21},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1966_21_5_a13/}
}