@misc {IOPORT.60009314,
    author       = {Frenk, Hans and Schaible, Siegfried},
    title        = {Fractional programming},
    howpublished = {Encyclopedia of Optimization, 1080-1091 (2009).},
    year         = {2009},
    doi          = {10.1007/978-0-387-74759-0_189},
    identifier   = {60009314},
}