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@article{MZ_1921__9_167623, author = {T., Carleman}, title = {Zur {Theorie} der linearen {Integralgleichungen}}, journal = {Mathematische Zeitschrift}, pages = {196--217}, publisher = {mathdoc}, volume = {9}, year = {1921}, zbl = {48.1249.01}, url = {http://geodesic.mathdoc.fr/item/MZ_1921__9_167623/} }
T., Carleman. Zur Theorie der linearen Integralgleichungen. Mathematische Zeitschrift, Tome 9 (1921), pp. 196-217. http://geodesic.mathdoc.fr/item/MZ_1921__9_167623/