@book {Cernik:1987,
	title = {Te{\'o}ria poznania},
	year = {1987},
	publisher = {Pravda, Bratislava},
	organization = {Pravda, Bratislava},
	author = {V{\'a}clav {\v C}ern{\'\i}k and Farka{\v s}ov{\'a}, Etela and Vicen{\'\i}k, Jozef}
}
