@article{SF_1977__14_186360,
     author = {B.M. Schein and L.B. Sneperman and L. M. Gluskin and I.S. Yaroker},
     title = {Addendum to },
     journal = {Semigroup forum},
     pages = {95--126},
     publisher = {mathdoc},
     volume = {14},
     year = {1977},
     zbl = {0375.20053},
     url = {http://geodesic.mathdoc.fr/item/SF_1977__14_186360/}
}