Journal of Pure and Applied Algebra
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 187-205
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 135-147
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 117-133
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 153-162
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 207-218
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 149-152
Journal of Pure and Applied Algebra > 2002 > 174 > 2 > 163-185