| Hans-Günter Meyer-Thompson | Fentanyl
USA. FURANYL-FENTANYL·ACRYL-FENTANYL·ACETYL-FENTANYL: A Briefing Guide for First Responders
USA. FURANYL-FENTANYL·ACRYL-FENTANYL·ACETYL-FENTANYL: A Briefing Guide for First Responders
U.S. Department of Justice - Drug Enforcement Administration, 2017
https://www.dea.gov/druginfo/Fentanyl_BriefingGuideforFirstResponders_June2017.pdf