Stuart C. Shapiro. Belief spaces as sets of propositions. J. Exp. Theor. Artif. Intell., 5(2-3):225-235, 1993. [doi]
@article{Shapiro93-2,
title = {Belief spaces as sets of propositions},
author = {Stuart C. Shapiro},
year = {1993},
doi = {10.1080/09528139308953771},
url = {http://dx.doi.org/10.1080/09528139308953771},
researchr = {https://researchr.org/publication/Shapiro93-2},
cites = {0},
citedby = {0},
journal = {J. Exp. Theor. Artif. Intell.},
volume = {5},
number = {2-3},
pages = {225-235},
}