%0 Journal Article %A An, Mingqiang %A Lai, Hong-Jian %A Li, Hao %A Su, Guifu %A Tian, Runli %A Xiong, Liming %T Two operations on a graph preserving the (non)existence of 2-factors in its line graph %J Czechoslovak Mathematical Journal %D 2014 %P 1035-1044 %V 64 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-014-0151-4/ %R 10.1007/s10587-014-0151-4 %G en %F 10_1007_s10587_014_0151_4