@article{DE_1973_9_1_a22,
     author = {V. I. Ermakov},
     title = {Critical points of the harmonic {Green's} function for the exterior of a domain that is homeomorphic to a ball},
     journal = {Differencialʹnye uravneni\^a},
     pages = {175--176},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_1_a22/}
}