@article{JRAM_1977__291_151851,
     author = {Ulrich Kn\"opp},
     title = {\"Uber die {Inversion} gewisser unendlicher {Matrizen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {30--43},
     publisher = {mathdoc},
     volume = {291},
     year = {1977},
     zbl = {0342.15006},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1977__291_151851/}
}