Kaufmann, Michael Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Mehlhorn, Kurt Algorithms and Complexity, MPI for Informatics, Max Planck Society;
https://rdcu.be/dvwS7 (Verlagsversion)
Kaufmann, M., & Mehlhorn, K. (1987). On Local Routing of Two-Terminal Nets. In F. J. Brandenburg, G. Vidal-Naquet, & M. Wirsing (Eds.), STACS 87 (pp. 40-52). Berlin, Germany: Springer.