@article{RCM_2019_53_E_a7,
     author = {Paulo C\'esar Oliveira and Fernando Torres},
     title = {On space maximal curves},
     journal = {Revista colombiana de matematicas},
     pages = {223--235},
     publisher = {mathdoc},
     volume = {53},
     number = {E},
     year = {2019},
     url = {http://geodesic.mathdoc.fr/item/RCM_2019_53_E_a7/}
}