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@article{MZ_1919__3_167515, author = {J. Horn}, title = {Singul\"are {Systeme} linearer {Volterrascher} {Integralgleichungen}}, journal = {Mathematische Zeitschrift}, pages = {265--313}, publisher = {mathdoc}, volume = {3}, year = {1919}, zbl = {47.0370.01}, url = {http://geodesic.mathdoc.fr/item/MZ_1919__3_167515/} }
J. Horn. Singuläre Systeme linearer Volterrascher Integralgleichungen. Mathematische Zeitschrift, Tome 3 (1919), pp. 265-313. http://geodesic.mathdoc.fr/item/MZ_1919__3_167515/