@article{RMI_2000_2000_1_a13,
     author = {Gromadzki, Grzegorz},
     title = {Ovalos en superficies de {Riemann.}},
     journal = {Revista matem\'atica iberoamericana},
     pages = {515-527},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_2000_2000_1_a13/}
}