We notice that the 1992 paper “Industrial Ecology: Reflections on a Colloquium” (Proc. Natl. Acad. Sci. USA) has been published online:
https://www.pnas.org/cgi/reprint/89/3/879
We also have a copy on our server: https://phe.rockefeller.edu/PDF_FILES/AusubelPNAS1992.pdf 