Klaus Heeger, Jens Vygen. Two-Connected Spanning Subgraphs with at Most $\frac{10}{7}{OPT}$ Edges. SIAM J. Discrete Math., 31(3):1820-1835, 2017. [doi]
@article{HeegerV17,
title = {Two-Connected Spanning Subgraphs with at Most $\frac{10}{7}{OPT}$ Edges},
author = {Klaus Heeger and Jens Vygen},
year = {2017},
doi = {10.1137/16M1091587},
url = {https://doi.org/10.1137/16M1091587},
researchr = {https://researchr.org/publication/HeegerV17},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {31},
number = {3},
pages = {1820-1835},
}