@article{GDZPPN00125863X, title = {Monomorphisms of semigroups of B-rigid local dendrites.}, journal = {Semigroup forum}, volume = {33}, year = {1986}, pages = {35-52}, zbl = {0615.20043}, url = {http://dml.mathdoc.fr/item/GDZPPN00125863X} }
Magill, K.D. jr. Monomorphisms of semigroups of B-rigid local dendrites.. Semigroup forum, Tome 33 (1986) pp. 35-52. http://gdmltest.u-ga.fr/item/GDZPPN00125863X/