@article{MZ_1973__133_171947,
     author = {Michael Stieglitz},
     title = {Matrixtransformationen von unvollstl;ndigen {Folgenr\"aumen.}},
     journal = {Mathematische Zeitschrift},
     pages = {129--132},
     publisher = {mathdoc},
     volume = {133},
     year = {1973},
     zbl = {0251.46017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1973__133_171947/}
}