@article{KJM_2011_35_1_a15,
     author = {Liu Wu-xin and Wei Fu-yi},
     title = {The number of spanning trees of double graphs},
     journal = {Kragujevac Journal of Mathematics},
     pages = {183 },
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2011_35_1_a15/}
}