Tilson, B.. "The intersection of free submonoids of a free monoid is free.." Semigroup forum 4 (1972): 345-350. <http://eudml.org/doc/133915>.
@article{Tilson1972, author = {Tilson, B.}, journal = {Semigroup forum}, pages = {345-350}, title = {The intersection of free submonoids of a free monoid is free.}, url = {http://eudml.org/doc/133915}, volume = {4}, year = {1972}, }
TY - JOUR AU - Tilson, B. TI - The intersection of free submonoids of a free monoid is free. JO - Semigroup forum PY - 1972 VL - 4 SP - 345 EP - 350 UR - http://eudml.org/doc/133915 ER -