@article{RO_2022__56_5_3675_0,
     author = {He, Zhengyue and Liang, Li and Gao, Wei},
     title = {Isolated toughness variant and fractional $k$-factor},
     journal = {RAIRO. Operations Research},
     pages = {3675--3688},
     year = {2022},
     publisher = {EDP-Sciences},
     volume = {56},
     number = {5},
     doi = {10.1051/ro/2022177},
     mrnumber = {4502919},
     zbl = {1502.05203},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/ro/2022177/}
}