@article{10_1007_s10587_012_0055_0,
     author = {Yang, Yingqiu and Sun, Liang},
     title = {Contractible edges in some $k$-connected graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {637--644},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {2012},
     doi = {10.1007/s10587-012-0055-0},
     mrnumber = {2984624},
     zbl = {1265.05339},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-012-0055-0/}
}