@article{10_1007_s10587_013_0046_9,
     author = {Qin, Chengfu and Guo, Xiaofeng and Yang, Weihua},
     title = {The contractible subgraph of $5$-connected graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {671--677},
     publisher = {mathdoc},
     volume = {63},
     number = {3},
     year = {2013},
     doi = {10.1007/s10587-013-0046-9},
     mrnumber = {3125648},
     zbl = {06282104},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0046-9/}
}