@article{MET_1965__9_175245,
     author = {H. M\"uller-Merbach},
     title = {Einf\"uhrung in die numerische {Mathematik} -  {Stiefel,} {E.}},
     journal = {Metrika},
     pages = {71--71},
     year = {1965},
     volume = {9},
     url = {http://geodesic.mathdoc.fr/item/MET_1965__9_175245/}
}