Bergman, George M.. "Hyperidentities of groups and semigroups.." Aequationes mathematicae 23 (1981): 50-65. <http://eudml.org/doc/136890>.
@article{Bergman1981, author = {Bergman, George M.}, journal = {Aequationes mathematicae}, keywords = {varieties of groups; 1-variable hyperidentities; hyper-Horn-sentence; reduct}, pages = {50-65}, title = {Hyperidentities of groups and semigroups.}, url = {http://eudml.org/doc/136890}, volume = {23}, year = {1981}, }
TY - JOUR AU - Bergman, George M. TI - Hyperidentities of groups and semigroups. JO - Aequationes mathematicae PY - 1981 VL - 23 SP - 50 EP - 65 KW - varieties of groups; 1-variable hyperidentities; hyper-Horn-sentence; reduct UR - http://eudml.org/doc/136890 ER -
