Ilya Shapirovsky, Valentin B. Shehtman. Modal Logics of Regions and Minkowski Spacetime. Journal of Logic and Computation, 15(4):559-574, 2005. [doi]
@article{ShapirovskyS05,
title = {Modal Logics of Regions and Minkowski Spacetime},
author = {Ilya Shapirovsky and Valentin B. Shehtman},
year = {2005},
doi = {10.1093/logcom/exi039},
url = {http://dx.doi.org/10.1093/logcom/exi039},
tags = {modal logic, logic},
researchr = {https://researchr.org/publication/ShapirovskyS05},
cites = {0},
citedby = {0},
journal = {Journal of Logic and Computation},
volume = {15},
number = {4},
pages = {559-574},
}