Ya-Fen Chang, Chin-Chen Chang. Schemes for Digital Gift Certificates with Low Computation Complexity. Informatica, Lith. Acad. Sci., 16(4):503-518, 2005. [doi]
@article{ChangC05,
title = {Schemes for Digital Gift Certificates with Low Computation Complexity},
author = {Ya-Fen Chang and Chin-Chen Chang},
year = {2005},
url = {http://www.vtex.lt/Informatica/htm/INFO608.htm},
tags = {certification},
researchr = {https://researchr.org/publication/ChangC05},
cites = {0},
citedby = {0},
journal = {Informatica, Lith. Acad. Sci.},
volume = {16},
number = {4},
pages = {503-518},
}