title = {Fixed-parameter algorithms for the $(k,r)$-center in planar graphs and map graphs},
author = {Erik D. Demaine and Fedor V. Fomin and MohammadTaghi Hajiaghayi and Dimitrios M. Thilikos},
institution = {Univ. of Bergen, Dept. of Informatics},
address = {N-5020 Bergen, Norway},
month = {Apr},
year = {2003},
url = {}}

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