@article{MET_1959__2_175065,
     author = {H. Kregeloh},
     title = {Mathematik - {Technik} - {Wirtschaft}},
     journal = {Metrika},
     pages = {251--252},
     publisher = {mathdoc},
     volume = {2},
     year = {1959},
     url = {http://geodesic.mathdoc.fr/item/MET_1959__2_175065/}
}