@article{PM_1994_1994_1_a1,
     author = {Rodriguez, Jos\'e M.},
     title = {Dos observaciones sobre las superficies de {Riemann.}},
     journal = {Publicacions matem\`atiques},
     pages = {463-477},
     year = {1994},
     volume = {38},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1994_1994_1_a1/}
}