Search results
Bulletin of the Section of Logic > 2021 > 50 > 1 > 81-96
Discussiones Mathematicae - General Algebra and Applications > 2010 > 30 > 2 > 207-215
Discrete Mathematics > 2008 > 308 > 20 > 4724-4733
Open Mathematics > 2007 > 5 > 3 > 484-492
Central European Journal of Mathematics > 2007 > 5 > 3 > 484-492
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 141-153
Demonstratio Mathematica > 2006 > Vol. 39, nr 3 > 483-490
International Journal of Theoretical Physics > 2005 > 44 > 7 > 735-744
Discussiones Mathematicae - General Algebra and Applications > 2004 > 24 > 1 > 137-147
Southeast Asian Bulletin of Mathematics > 2000 > 24 > 1 > 15-18
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 1 > 87-95
Czechoslovak Mathematical Journal > 1997 > 47 > 1 > 163-172