Algebra and Logic
Algebra and Logic > 2015 > 54 > 3 > 245-257
Algebra and Logic > 2015 > 54 > 3 > 204-210
Algebra and Logic > 2015 > 54 > 3 > 211-225
Algebra and Logic > 2015 > 54 > 3 > 258-271
Algebra and Logic > 2015 > 54 > 3 > 226-244
Algebra and Logic > 2015 > 54 > 3 > 197-203