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@article{MS2_1967__20_165998, author = {Maurice Heins}, title = {On the {Theorem} of {Szeg\"o-Solomentsev.}}, journal = {Mathematica Scandinavica}, pages = {281--289}, publisher = {mathdoc}, volume = {20}, year = {1967}, zbl = {0162.43002}, url = {http://geodesic.mathdoc.fr/item/MS2_1967__20_165998/} }
Maurice Heins. On the Theorem of Szegö-Solomentsev.. Mathematica Scandinavica, Tome 20 (1967), pp. 281-289. http://geodesic.mathdoc.fr/item/MS2_1967__20_165998/