Discussiones Mathematicae - General Algebra and Applications
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 263-275
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 277-291
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 245-262
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 235-243
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 147-167
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 199-233
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 187-197
Discussiones Mathematicae - General Algebra and Applications > 2007 > 27 > 2 > 169-186