Marian Tupy makes ingenious use of our work on Dematerialization:

Among our numerous papers on this theme are:

JH Ausubel, PE Waggoner. Dematerialization: variety, caution, and persistence [external link]. Proc Natl Acad Sci U S A 105(35): 12774-12779, 2008 10.1073/pnas.0806099105 D

IK Wernick, R Herman, S Govind, JH Ausubel. Materialization and dematerialization: Measures and trends. Pp 135-156 in Technological Trajectories and the Human Environment, JH Ausubel and HD Langford (eds) 1997