[1] Berge Claude:
Théorie des graphes et ses applications. Russian translation, Moscow 1962.
MR 0155312 |
Zbl 0101.16602
[2] Neuman František:
On a certain ordering of the vertices of a tree. Čas. pro pěst. mat., Praha, 89 (1964), p. 323-339.
MR 0181587
[3] Sekanina Milan:
On an ordering of the set of vertices of a connected graph. Publ. Fac. Sci. Univ. Вrno, Czechoslovakia, No. 412 (1960), p. 137-142.
MR 0140095
[4] Sekanina Milan:
On an ordering of the vertices of graphs. Čas. pro pěst. mat., Praha, 88 (1963), p. 265-282.
MR 0181588