@article{MAN_1985__271_163980,
     author = {John Little},
     title = {Characterizing {Curves} on {Surface} of {Special} {Types.}},
     journal = {Mathematische Annalen},
     pages = {459--466},
     year = {1985},
     volume = {271},
     zbl = {0539.14024},
     url = {http://geodesic.mathdoc.fr/item/MAN_1985__271_163980/}
}