The document "Revisiting CONCATENATE-SEQUENCE" has been revised by its author Christophe Rhodes. This document is still in its initial stage and will be finalized on January 15, 2007, unless withdrawn by the author beforehand. See http://cdr.eurolisp.org/document/3/ for more details. Pascal -- Pascal Costanza, mailto:pc@p-cos.net, http://p-cos.net Vrije Universiteit Brussel, Programming Technology Lab Pleinlaan 2, B-1050 Brussel, Belgium