On a Simple 3-valued Modal Language and a 3-valued Logic of '<i>not-fully-justified</i>' Belief.

Costas D. Koutras Christos Nomikos Pavlos Peppas On a Simple 3-valued Modal Language and a 3-valued Logic of '<i>not-fully-justified</i>' Belief. 591-604 2008 16 Logic Journal of the IGPL 6 http://dx.doi.org/10.1093/jigpal/jzn024 db/journals/igpl/igpl16.html#KoutrasNP08