@article{MET_1974__21_251881,
     author = {R. BURKARD},
     title = {Richtigstellung aus {Vol.} 20 {Fase.} 3  - {Methoden} der ganzzahligen {Optimierung.}},
     journal = {Metrika},
     pages = {64--64},
     publisher = {mathdoc},
     volume = {21},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/MET_1974__21_251881/}
}