@article{CMUC_1998__39_3_a12,
     author = {Charatonik, Janusz J. and Illanes, Alejandro},
     title = {Homotopy properties of curves},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {573--580},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1998},
     mrnumber = {1666818},
     zbl = {0962.54027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1998__39_3_a12/}
}