@PRESENTATION{i}lkov{\'a}2009,
	title     = {On coalgebraic modal logic},
	author    = {Marta B{\' i}lkov{\'a}},
	year      = {2009},
	month     = {October},
	booktitle = {The Seminar on Non-classical Logics. University of Barcelona},
	state     = {published}
}