de Almeida Assis, Ana Cristina, Filipa Isabel Romano Inacio, João Sérgio Seixas de Melo, and Carlos Farinha. “Writing Instruments Inks: Microspectrophotometry Forensic Analysis and Characterisation”. European Law Enforcement Research Bulletin, no. 16 (August 14, 2017): 187-207. Accessed May 5, 2024. http://bulletin.cepol.europa.eu/index.php/bulletin/article/view/252.