@book{6086,
	author = {Huhn, A. P. and Bolyai János Matematikai Társulat.},
	title = {Contributions to lattice theory /},
	publisher = {North-Holland ;},
	year = {1983.},
	series = {Colloquia mathematica Societatis Jʹanos Bolyai,},
	address = {Amsterdam ;}
}