Amir Herzberg, Shlomit S. Pinter. Public Protection of Software. ACM Trans. Comput. Syst., 5(4):371-393, 1987. [doi]
@article{HerzbergP87,
title = {Public Protection of Software},
author = {Amir Herzberg and Shlomit S. Pinter},
year = {1987},
doi = {10.1145/29868.29872},
url = {http://doi.acm.org/10.1145/29868.29872},
researchr = {https://researchr.org/publication/HerzbergP87},
cites = {0},
citedby = {0},
journal = {ACM Trans. Comput. Syst.},
volume = {5},
number = {4},
pages = {371-393},
}