@article{QUE_1982_1982_1_a12,
     author = {Guasch Petit, Antoni},
     title = {Estudio de sistemas mediante t\'ecnicas de c\'alculo h{\'\i}brido.},
     journal = {Q\"uestii\'o},
     pages = {305-317},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1982},
     url = {http://geodesic.mathdoc.fr/item/QUE_1982_1982_1_a12/}
}