Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1919__4_167521, author = {G., Szeg\"o}, title = {\"Uber {Orthogonalsysteme} von {Polynomen}}, journal = {Mathematische Zeitschrift}, pages = {139--151}, publisher = {mathdoc}, volume = {4}, year = {1919}, zbl = {47.0335.01}, url = {http://geodesic.mathdoc.fr/item/MZ_1919__4_167521/} }
G., Szegö. Über Orthogonalsysteme von Polynomen. Mathematische Zeitschrift, Tome 4 (1919), pp. 139-151. http://geodesic.mathdoc.fr/item/MZ_1919__4_167521/