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@article{PMF_1911_22_1_a8, author = {Toeplitz, Otto}, title = {\"Uber allgemeine lineare {Mittelbildungen.}}, journal = {Prace Matematyczno-Fizyczne}, pages = {113--119}, publisher = {mathdoc}, volume = {22}, number = {1}, year = {1911}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PMF_1911_22_1_a8/} }
Toeplitz, Otto. Über allgemeine lineare Mittelbildungen.. Prace Matematyczno-Fizyczne, Tome 22 (1911) no. 1, pp. 113-119. http://geodesic.mathdoc.fr/item/PMF_1911_22_1_a8/