David Eppstein
J. Algorithms 37(2):570–577, Nov 2000
Proc. 10th Symp. Discrete Algorithms, ACM
and SIAM, Jan 1999, pp. S899–S900
ACM Computing Research Repository, cs.CG/9809038
Mathematical Reviews 2001g:68095
http://dx.doi.org/10.1006/jagm.2000.1107
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