Attached is the 3 slides I presented at IDN, and a gratuitous 4th slide
presenting a classification of solutions that I typed in during the meeting.
Even though it's ppt, it's only 28 Kbytes, so I hope the list can stand it....
Harald
-- Harald Tveit Alvestrand, EDB Maxware, Norway Harald.Alvestrand@edb.maxware.no