Additions and corrections were kindly contributed by:
Bill ALFORD (bill@phys.anu.edu.au),
Tim A. H. BELL (bhat@mundil.cs.mu.oz.au),
Karl BERRY (karl@cs.umb.edu),
Gert W. BULTMAN (bultman@dgw.rws.nl),
Anita ZANOLINI HOOVER (anita@ravel.udel.edu),
Berthold K. P. HORN (bkph@kauai.ai.mit.edu),
Michał JAEGERMANN (ntomczak@vm.ucs.ualberta.ca),
and
David KASTRUP (dak@pool.informatik.rwth-aachen.de).
Typesetting was initiated by
Yannis HARALAMBOUS (yannis@gat.citilille.fr).
Mistakes remain copyright © 1994 Geoffrey TOBIN.