Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program A Novel Machine Learning Approach Based on Quantitative Profile-Profile Relationship (QPPR) to Address Complex Source-Level Problems in the Forensic Analysis of Gunshot Residue (GSR) Presenting section: Criminalistics 2021 Gallidabino, Matteo D., Newcastle upon Tyne UNITED KINGDOM; Barron, Leon P., London UNITED KINGDOM; Weyermann, Céline, Lausanne SWITZERLAND; Romolo, Francesco S., Bergamo ITALY View the paper Criminalistics