Sorry about that, that last message should, of course, have gone to
Helena, not to grassp-list. 
Martin
--
Martin Ameskamp, Inst. f. Informatik I (Computing Dept.)
Kiel University, Olshausenstr. 40, 24118 Kiel, Germany
Fax: ++49 431 8804054, Voice: ++49 431 8804474,
email: ma@informatik.uni-kiel.d400.de