@article{10_4153_CJM_1974_144_x,
     author = {Jr., K. D. Magill and Subbiah, S.},
     title = {Green's {Relations} for {Regular} {Elements} of {Semigroups} of {Endomorphisms}},
     journal = {Canadian journal of mathematics},
     pages = {1484--1497},
     year = {1974},
     volume = {26},
     number = {6},
     doi = {10.4153/CJM-1974-144-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-144-x/}
}