@article{CMUC_1972__13_2_a3,
     author = {Nebesk\'y, Ladislav},
     title = {Planar permutation graphs of paths},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {253--256},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1972},
     mrnumber = {0307981},
     zbl = {0239.05106},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1972__13_2_a3/}
}