@article{GDZPPN001253743, title = {Homomorphisms of semilattices of semigroups.}, journal = {Semigroup forum}, volume = {20}, year = {1980}, pages = {133-138}, zbl = {0439.20042}, url = {http://dml.mathdoc.fr/item/GDZPPN001253743} }
Osondu, K.E. Homomorphisms of semilattices of semigroups.. Semigroup forum, Tome 20 (1980) pp. 133-138. http://gdmltest.u-ga.fr/item/GDZPPN001253743/