%0 Journal Article %A Ernest X.W. Xia %A Olivia X.M. Yao %T A criterion for the log-convexity of combinatorial sequences %J The electronic journal of combinatorics %D 2013 %V 20 %N 4 %U http://geodesic.mathdoc.fr/articles/10.37236/3412/ %R 10.37236/3412 %F 10_37236_3412