Edge-face chromatic number of Halin-graphs
Tài liệu tham khảo
Halin, R., Studies on minimally n-connected graph, inComb. Math. and Its Applications, Proc. Conf. Oxford, London: Academic Press, 1969.
Bondy, J. A., Murty, U. S. R.,Graph Theory with Applications, New York: Macmillan Press Ltd, 1976.
