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Chen CC., K.M. Koh and Y.H. Peng, On the higher-order edge toughness of a graph, Discrete Mathematics 111 (1993) 113-123. For an integer c, 1 <c < 1 V(G) I1, we define the cth-order edye toughness of a graph G as The objective of this paper is to study this generalized concept of edge toughness. Besides giving the bounds and relationships of the cth-order(More)