
The Extremal Digraphs of the $k$th Upper Generalized Exponent for $k$-Upper Primitive Symmetric Digraphs
CHEN Shexi
Journal of Systems Science and Mathematical Sciences ›› 2009, Vol. 29 ›› Issue (3) : 309-314.
The Extremal Digraphs of the $k$th Upper Generalized Exponent for $k$-Upper Primitive Symmetric Digraphs
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