@ARTICLE{
author={Czedli Gabor,Erne M,Seselja Branimir M,Tepavcevic Andreja P},
year={2009},
title={Characteristic triangles of closure operators with applications in general algebra},
journal={ALGEBRA UNIVERSALIS},
volume={62},
number={4},
pages={399-418},
document_type={Article},
} 

@ARTICLE{
author={Czedli Gabor,Seselja Branimir M,Tepavcevic Andreja P},
year={2008},
title={On the semidistributivity of elements in weak congruence lattices of algebras and groups},
journal={ALGEBRA UNIVERSALIS},
volume={58},
number={3},
pages={349-355},
document_type={Article},
}