title = {Faster approximation algorithms for the rectilinear Steiner problem},
author = {Ulrich F{\"o}{\ss}meier and Michael Kaufmann and Alexander Zelikovsky},
booktitle = {Proc. 4th Int. Symp. Algorithms & Computation (ISAAC 1993)},
number = {762},
editor = {Kam-Wing Ng and Prabhakar Raghavan and N. V. Balasubramanian and Francis Y. L. Chin},
series = {Lecture Notes in Computer Science},
publisher = {Springer-Verlag},
pages = {533--542},
year = {1993}}

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