[1] M. Behzad, G. Chartrand, L. Lesniak-Foster:
Graphs & Digraphs. Prindle, Weber & Schmidt, Boston, 1979.
MR 0525578
[4] L. Nebeský:
A characterization of the set of all shortest paths in a connected graph. Math. Bohem. 119 (1994), 15–20.
MR 1303548
[5] L. Nebeský:
A characterization of the interval function of a connected graph. Czechoslovak Math. J. 44 (119) (1994), 173–178.
MR 1257943
[6] L. Nebeský:
Visibilities and sets of shortest paths in a connected graph. Czechoslovak Math. J. 45 (120) (1995), 563–570.
MR 1344521
[7] L. Nebeský:
On the set of all shortest paths of a given length in a connected graph. Czechoslovak Math. J. 46 (121) (1996), 155–160.
MR 1371697