Discussiones Mathematicae - General Algebra and Applications
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 255-265
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 233-253
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 199-206
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 193-198
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 169-182
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 219-231
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 207-217
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 183-192
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 159-167