@article{BSL9_1_Dziobiak,
author = {Wies{\l}aw DZIOBIAK},
title = {A Variety by a Finite Algebra with $2^{\aleph_0}$ Subvarieties},
journal = {Bulletin of the Section of Logic},
volume = {9},
number = {1},
year = {1980},
pages = {2--9}
}