@article{MET_1970__15_175417,
     author = {K. Swarup},
     title = {Upper {Bound} {Problem} in {Linear} {Fractional} {Functionals} {Programming}},
     journal = {Metrika},
     pages = {81--85},
     year = {1970},
     volume = {15},
     zbl = {0211.22302},
     url = {http://geodesic.mathdoc.fr/item/MET_1970__15_175417/}
}