@article{10_1017_S2040618500034699,
     author = {Chehata, C. G.},
     title = {Extension of partial endomorphisms of abelian groups},
     journal = {Glasgow mathematical journal},
     pages = {45--48},
     year = {1963},
     volume = {6},
     number = {1},
     doi = {10.1017/S2040618500034699},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034699/}
}