@article{QUE_1988_1988_1_a12,
     author = {Barcel\'o, Jaume and Fern\'andez, E.},
     title = {Problemas de {Knapsack} 0-1 con una restricci\'on adicional.},
     journal = {Q\"uestii\'o},
     pages = {175-208},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {1988},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/QUE_1988_1988_1_a12/}
}