@article{QUE_1982_1982_1_a17,
     author = {Ar\'aoz, Juli\'an},
     title = {Neopolares de problemas de empaquetamiento sobre semigrupos.},
     journal = {Q\"uestii\'o},
     pages = {163-168},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1982},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/QUE_1982_1982_1_a17/}
}