Laporte, G. M.; Arredondo, M. D.; McConnell, T. S.; Stephens, J. C.; Cantu, A. A.; Shaffer, D. K. (May 2006). "An evaluation of matching unknown writing inks with the United States International Ink Library". Journal of Forensic Sciences. 51 (3): 689–692. doi:10.1111/j.1556-4029.2006.00144.x. PMID16696723.
Laporte, G. M.; Arredondo, M. D.; McConnell, T. S.; Stephens, J. C.; Cantu, A. A.; Shaffer, D. K. (May 2006). "An evaluation of matching unknown writing inks with the United States International Ink Library". Journal of Forensic Sciences. 51 (3): 689–692. doi:10.1111/j.1556-4029.2006.00144.x. PMID16696723.