Canonical Formulas for K4, Part II: Confinal Subframe Logics
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\begin{bibtex} @article{DBLP:journals/jsyml/Zakharyaschev96,
author = {Michael Zakharyaschev},
title = {Canonical Formulas for K4, Part II: Confinal Subframe Logics},
journal = {J. Symb. Log.},
volume = {61},
number = {2},
year = {1996},
pages = {421-449},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
\end{bibtex}
