@article{GDZPPN001257129, title = {The word problem in the tensor product of distributive semilattices.}, journal = {Semigroup forum}, volume = {30}, year = {1984}, pages = {117-120}, zbl = {0528.06007}, url = {http://dml.mathdoc.fr/item/GDZPPN001257129} }
Fraser, G.A.; Bell, A.M. The word problem in the tensor product of distributive semilattices.. Semigroup forum, Tome 30 (1984) pp. 117-120. http://gdmltest.u-ga.fr/item/GDZPPN001257129/