Search results for: Zhibo Chen
Discrete Mathematics > 2006 > 306 > 21 > 2733-2739
Czechoslovak Mathematical Journal > 2006 > 56 > 3 > 895-902
Discrete Mathematics > 2006 > 306 > 21 > 2733-2739
Czechoslovak Mathematical Journal > 2006 > 56 > 3 > 895-902