@article{MET_1967__11_175323,
     author = {G. Zahel},
     title = {Notiz \"uber die {Genauigkeit} von {Messungen} im {Gel\"ande}},
     journal = {Metrika},
     pages = {145--149},
     publisher = {mathdoc},
     volume = {11},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/MET_1967__11_175323/}
}