%0 Journal Article %A Pióro, Konrad %T On subalgebra lattices of a finite unary algebra. I. %J Mathematica Bohemica %D 2001 %P 161-170 %V 126 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.133915/ %R 10.21136/MB.2001.133915 %G en %F 10_21136_MB_2001_133915