@article{MET_1972__18_175492,
     author = {C.R. Bector},
     title = {Indefinite {Quadratic} {Fractional} {Functional} {Programming.}},
     journal = {Metrika},
     pages = {21--30},
     publisher = {mathdoc},
     volume = {18},
     year = {1972},
     zbl = {0225.90034},
     url = {http://geodesic.mathdoc.fr/item/MET_1972__18_175492/}
}