SRINIVASAN, R. .; KUCHIBHOTLA, A. .; SRINIVASU, G. .; MATAD, B. . HP Labs India’s Technology to Make Printed Paper Documents Tamper-Proof. Journal of Technology Management for Growing Economies, [S. l.], v. 1, n. 1, p. 9–22, 2010. DOI: 10.15415/jtmge.2010.11001. Disponível em: https://tmg.chitkara.edu.in/index.php/tmge/article/view/114. Acesso em: 23 sep. 2021.