Mark Ryan. Towards Specifying Norms. Annals of Mathematics and Artificial Intelligence, 9(1-2):49-68, 1993.
@article{Ryan93,
title = {Towards Specifying Norms},
author = {Mark Ryan},
year = {1993},
researchr = {https://researchr.org/publication/Ryan93},
cites = {0},
citedby = {0},
journal = {Annals of Mathematics and Artificial Intelligence},
volume = {9},
number = {1-2},
pages = {49-68},
}