@article{10_21136_CMJ_1996_127279,
     author = {Nebesk\'y, Ladislav},
     title = {On the set of all shortest paths of a given length in a connected graph},
     journal = {Czechoslovak Mathematical Journal},
     pages = {155--160},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1996},
     doi = {10.21136/CMJ.1996.127279},
     mrnumber = {1371697},
     zbl = {0902.05042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1996.127279/}
}