Karpinksi, M. Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Zelikovsky, Alexander Algorithms and Complexity, MPI for Informatics, Max Planck Society;
MPI-I-94-158.pdf (beliebiger Volltext), 8MB
Karpinksi, M., & Zelikovsky, A.(1994). Further improvements of Steiner tree approximations (MPI-I-94-158). Saarbrücken: Max-Planck-Institut für Informatik.