de Almeida Assis, A. C., Romano Inacio, F. I., Seixas de Melo, J. S., & Farinha, C. (2017). Writing instruments inks: microspectrophotometry forensic analysis and characterisation. European Law Enforcement Research Bulletin, (16), 187-207. Retrieved from http://bulletin.cepol.europa.eu/index.php/bulletin/article/view/252