For more than a year now, I have been looking for a copy of the following CICMA Concordia preprint :
Author : Helmut Koch Title : Extendible functions Preprint, CICMA Concordia University Department of Mathematics preprint, 1990.
I tried to locate a copy at the Fields Institute and the University of Toronto libraries, without success. I have also written to Concordia, again without success. So I will be very very grateful to anyone who can make a copy (electronic or paper) available to me. My email address is email@example.com.