Edmunds, C.C.. "Varieties generated by semigroups of order four.." Semigroup forum 21 (1980): 67-82. <http://eudml.org/doc/134435>.
@article{Edmunds1980, author = {Edmunds, C.C.}, journal = {Semigroup forum}, pages = {67-82}, title = {Varieties generated by semigroups of order four.}, url = {http://eudml.org/doc/134435}, volume = {21}, year = {1980}, }
TY - JOUR AU - Edmunds, C.C. TI - Varieties generated by semigroups of order four. JO - Semigroup forum PY - 1980 VL - 21 SP - 67 EP - 82 UR - http://eudml.org/doc/134435 ER -