found: His Formel Phantasie, 1972.
found: Information from 678 converted Jan. 5, 2015(Dr. rer. nat.)
found: Werteerfassung und Wertemanagement, 2020:title page (John Erpenbeck) page 4 of cover (Prof. Dr.; teaches Kompetenzentwicklung at the SIBE, School of International Business and Entrepreneurship, in Berlin)
found: Steffen Verlag WWW site, February 7, 2023(John Erpenbeck; born on 29 April 1942 in Ufa (Baschkirien); Ph. D. in physics, 1968; Habilitation to Dr. sc. phi. in 1978 and appointment as professor in 1984; since June 2007, professor at Steinbeis University-School of International Business and Entrepreneurship (SIBE) Herrenberg; also lists his literary works)
