@article{EXMATH_1998_1998_1_a13,
     author = {Cair\'o, Laurent and Feix, Marc R.},
     title = {Semejanza y factores de escala.},
     journal = {Extracta mathematicae},
     pages = {1-19},
     year = {1998},
     volume = {13},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1998_1998_1_a13/}
}