[1] Neuman F.:
On a certain ordering of the vertices of a tree. Čas. pro pěst. mat., 89 (1964), 323-339.
MR 0181587 |
Zbl 0131.20901
[2] Neuman F.:
On ordering of infinite trees. Čas. pro pěst. mat., 91 (1966), 170-177.
MR 0200198
[3] Ore O.:
Theory of graphs. Russian translation, Moscow 1968.
MR 0238724
[4] Sekanina M.:
On an ordering of the set of vertices of a connected graph. Publ. Fac. Univ. Brno, No. 412, 137-142 (1960).
MR 0140095 |
Zbl 0118.18903
[5] Sekanina M.:
On an ordering of the vertices of a graph. Čas. pro pěst. mat., 88 (1963) 265-282.
MR 0181588 |
Zbl 0134.43303