@article{CMUC_1988_29_2_a24,
     author = {Kratochv{\'\i}l, Jan},
     title = {Two results concerning string graphs},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {397},
     year = {1988},
     volume = {29},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1988_29_2_a24/}
}