Clifford, A.H.. "A proof of the Montague-Plemmons-Schein Theorem on maximal subgroups of the semigroup of binary relations.." Semigroup forum 1 (1970): 272-275. <http://eudml.org/doc/133801>.
@article{Clifford1970, author = {Clifford, A.H.}, journal = {Semigroup forum}, pages = {272-275}, title = {A proof of the Montague-Plemmons-Schein Theorem on maximal subgroups of the semigroup of binary relations.}, url = {http://eudml.org/doc/133801}, volume = {1}, year = {1970}, }
TY - JOUR AU - Clifford, A.H. TI - A proof of the Montague-Plemmons-Schein Theorem on maximal subgroups of the semigroup of binary relations. JO - Semigroup forum PY - 1970 VL - 1 SP - 272 EP - 275 UR - http://eudml.org/doc/133801 ER -