@article{SF_1986__35_134855,
     author = {K.D. jr. Magill},
     title = {Monomorphisms of semigroups of {B-rigid} local dendrites.},
     journal = {Semigroup forum},
     pages = {35--52},
     publisher = {mathdoc},
     volume = {35},
     year = {1986},
     zbl = {0615.20043},
     url = {http://geodesic.mathdoc.fr/item/SF_1986__35_134855/}
}