Context Algebras, Context Frames, and Their Discrete Duality.

Ewa Orlowska Ingrid Rewitzky Context Algebras, Context Frames, and Their Discrete Duality. 212-229 2008 9 T. Rough Sets http://dx.doi.org/10.1007/978-3-540-89876-4_13 journals/trs/2008-9 db/journals/trs/trs9.html#OrlowskaR08