@article{MZ_1981__176_183631,
     author = {Hans Strau{\ss}},
     title = {Eindeutigkeit in der {L1-Approximation.}},
     journal = {Mathematische Zeitschrift},
     pages = {63--74},
     publisher = {mathdoc},
     volume = {176},
     year = {1981},
     zbl = {0431.41041},
     url = {http://geodesic.mathdoc.fr/item/MZ_1981__176_183631/}
}