A theorem on three-coloring the edges of a trivalent graph*

[1]  D. Koenig.  Theorie Der Endlichen Und Unendlichen Graphen , 1965 .

[2]  George J. Minty,et al.  A Theorem on n-Coloring the Points of a Linear Graph , 1962 .

[3]  G. Minty,et al.  Solving Steady-State Nonlinear Networks of 'Monotone' Elements , 1961 .

[4]  W. T. Tutte.  A ring in graph theory , 1947, Mathematical Proceedings of the Cambridge Philosophical Society.

[5]  O. Ore.  Theory of Graphs , 1962 .

[6]  W. T. Tutte.  A Class Of Abelian Groups , 1956, Canadian Journal of Mathematics.