Francesco Savelli. Existential assertions and quantum levels on the tree of the situation calculus. Artificial Intelligence, 170(6-7):643-652, 2006. [doi]
@article{Savelli06,
title = {Existential assertions and quantum levels on the tree of the situation calculus},
author = {Francesco Savelli},
year = {2006},
doi = {10.1016/j.artint.2006.01.002},
url = {http://dx.doi.org/10.1016/j.artint.2006.01.002},
researchr = {https://researchr.org/publication/Savelli06},
cites = {0},
citedby = {0},
journal = {Artificial Intelligence},
volume = {170},
number = {6-7},
pages = {643-652},
}