@article{TIO_1989_1989_1_a5,
     author = {Felipe Ortega, Angel},
     title = {Problema de asignaci\'on cuadr\'atica multiobjetivo.},
     journal = {Trabajos de investigaci\'on operativa},
     pages = {61-82},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1989},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/TIO_1989_1989_1_a5/}
}