@article{PM_1992_1992_1_a20,
     author = {Bist, Vikas},
     title = {Unidades de torsi\'on en anillos de grupos.},
     journal = {Publicacions matem\`atiques},
     pages = {47-50},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1992_1992_1_a20/}
}