Norris, E.M.. "Union preserving homomorphisms of semigroups of closed relations.." Semigroup forum 15 (1977/78): 169-180. <http://eudml.org/doc/134247>.
@article{Norris1977/78, author = {Norris, E.M.}, journal = {Semigroup forum}, pages = {169-180}, title = {Union preserving homomorphisms of semigroups of closed relations.}, url = {http://eudml.org/doc/134247}, volume = {15}, year = {1977/78}, }
TY - JOUR AU - Norris, E.M. TI - Union preserving homomorphisms of semigroups of closed relations. JO - Semigroup forum PY - 1977/78 VL - 15 SP - 169 EP - 180 UR - http://eudml.org/doc/134247 ER -
