@article{JRAM_1976__285_151763,
     author = {Lutz Lucht},
     title = {Dichteschranken f\"ur die {L\"osbarkeit} gewisser linearer {Gleichungen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {209--217},
     publisher = {mathdoc},
     volume = {285},
     year = {1976},
     zbl = {0336.10053},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__285_151763/}
}