@article{QUE_1982_1982_1_a4,
     author = {Mellado, E. and Alonso Renter{\'\i}a, Esther and Tarela, Jos\'e Manuel},
     title = {S{\'\i}ntesis de sumadores bipolares.},
     journal = {Q\"uestii\'o},
     pages = {231-237},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1982},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/QUE_1982_1982_1_a4/}
}