Esther M. Arkin,
Martin Held,
Joseph S. B. Mitchell,
and Steven S. Skiena
Proc. 2nd Eur. Symp. Algorithms (ESA 1994), Lecture Notes in Computer Science 855, Jan van Leeuwen, ed., Springer-Verlag, Sep 1994, pp. 36–47
ftp://ams.sunysb.edu/pub/geometry/esa94.ps.gz
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