1. A constant-factor approximation for the generalized cable-trench problem;Benedito,2019
2. On the inapproximability of the Cable-Trench problem;Benedito;Procedia Comput. Sci.,2021
3. Piotr Berman, Marek Karpinski, Improved approximation lower bounds on small occurence optimization, in: ECCC Report, 2003.
4. Approximation Hardness and Satisfiability of Bounded Occurrence Instances of SAT;Berman,2003
5. Steiner tree approximation via iterative randomized rounding;Byrka;J. ACM,2013