@unpublished{h{\'a}jek2010,
	title     = {On the fuzzy modal logic {S}5({C})},
	author    = {Petr H{\'a}jek},
	year      = {2010},
	journal   = {Fuzzy Sets and Systems},
	institution= {online at http://dx.doi.org/10.1016/j.fss.2009.11.011},
	note      = {Fuzzy Sets and Systems},
	state     = {inpress},
	acknowledged= {1}
}