Bridging the gap between tree and connectivity augmentation: unified and stronger approaches. - Federica Cecchetto; Vera Traub; Rico Zenklusen (STOC, 2021)

Better-Than-4/3-Approximations for Leaf-to-Leaf Tree and Connectivity Augmentation. - Federica Cecchetto; Vera Traub; Rico Zenklusen (CoRR, 2022)

Improved Approximations for Connectivity Augmentation Problems. - Federica Cecchetto (2023)

Better-than-$ frac{4}{3}$-approximations for leaf-to-leaf tree and connectivity augmentation. - Federica Cecchetto; Vera Traub; Rico Zenklusen (Math. Program., 2024)