@article{MET_1967__12_175348,
     author = {H. Basler},
     title = {Bestimmung kostenoptimaler {Pr\"ufpl\"ane} mittels des {Mini-Max-Prinzips}},
     journal = {Metrika},
     pages = {115--154},
     publisher = {mathdoc},
     volume = {12},
     year = {1967},
     zbl = {0177.22903},
     url = {http://geodesic.mathdoc.fr/item/MET_1967__12_175348/}
}