Zachary Friggstad, Ramin Mousavi. A Constant-Factor Approximation for Quasi-Bipartite Directed Steiner Tree on Minor-Free Graphs. In Nicole Megow, Adam Smith, editors, Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques, APPROX/RANDOM 2023, September 11-13, 2023, Atlanta, Georgia, USA. Volume 275 of LIPIcs, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023. [doi]
Abstract is missing.