Philippe Balbiani, Petar Iliev, Dimiter Vakarelov. A Modal Logic for Pawlak s Approximation Spaces with Rough Cardinality n. Fundamenta Informaticae, 83(4):451-464, 2008. [doi]
@article{BalbianiIV08,
title = {A Modal Logic for Pawlak s Approximation Spaces with Rough Cardinality n},
author = {Philippe Balbiani and Petar Iliev and Dimiter Vakarelov},
year = {2008},
url = {http://iospress.metapress.com/content/k1444200m317u923/},
tags = {modal logic, logic},
researchr = {https://researchr.org/publication/BalbianiIV08},
cites = {0},
citedby = {0},
journal = {Fundamenta Informaticae},
volume = {83},
number = {4},
pages = {451-464},
}