Discussiones Mathematicae - General Algebra and Applications
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 183-197
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 233-251
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 163-181
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 155-161
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 199-217
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 219-231
Discussiones Mathematicae - General Algebra and Applications > 2006 > 26 > 2 > 141-153