@article{10_1017_S0017089514000317, author = {BAILEY, ALEX and GOULD, VICTORIA and HARTMANN, MIKL\'OS and RENSHAW, JAMES and SHAHEEN, LUBNA}, title = {COVERS {FOR} {S-ACTS} {AND} {CONDITION} {(A)} {FOR} {A} {MONOID} {S}}, journal = {Glasgow mathematical journal}, pages = {323--341}, year = {2015}, volume = {57}, number = {2}, doi = {10.1017/S0017089514000317}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089514000317/} }