@article{SF_1982__25_134574,
     author = {L.B. Sneperman},
     title = {The {Schur} {Theorem} for periodic semigroups of {Linear} relations.},
     journal = {Semigroup forum},
     pages = {203--212},
     publisher = {mathdoc},
     volume = {25},
     year = {1982},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134574/}
}