Search results for: Zhenfu Cao
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 > 199-206
Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 2 > 193-198