@article{CLTM_1995_1995_1_a6,
     author = {Marchionna Tibiletti, C.},
     title = {Transitividad para determinada normalidad libre en un grupo.},
     journal = {Collectanea mathematica},
     pages = {131-141},
     publisher = {mathdoc},
     volume = {46},
     number = {1-2},
     year = {1995},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1995_1995_1_a6/}
}