1. 6th National Survey on Attacks on Banks in Brazil;Contraf-CUT CNVT,2013
2. M. Lopez, Anti-theft device for automated tell machines which blurs or defaces banknotes - uses indelible dye or ink which is stored under pressure in tank which actuated by single from electrical device, Patent Number: US5537938-A.
3. J. Ookura, Anti-theft device e.g. for automated teller machine, has coloring apparatus that sprays coating material on banknotes stored in cash dispenser, when abnormal situation such as vibration or sound is detected by abnormality detector, Patent Number: JP2004227443-A.
4. Removal of dye-pack stains on U.S. currency: a reconstruction;Seiden;Int. J. Forensic Doc. Examiners,1996
5. 1-methylaminoanthraquinone — anthraquinone, 1-methylamino;Wilson;Org. Synth.,1949