There's one on both Clarkson and Ymir archives written by yours
truely. If you can't find it, send me mail and I'll send you a copy
(if I can find it).
ds
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arpa: Steiner at BakerSt.Rutgers.Edu or Steiner at Rutgers.Edu
uucp: ...{backbone site}!rutgers!bakerst.rutgers.edu!steiner