@article{10_1017_S001708951900017X, author = {POSITSELSKI, LEONID}, title = {FLAT {RING} {EPIMORPHISMS} {OF} {COUNTABLE} {TYPE}}, journal = {Glasgow mathematical journal}, pages = {383--439}, year = {2020}, volume = {62}, number = {2}, doi = {10.1017/S001708951900017X}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708951900017X/} }