# Sh:1091

• Dugas, M. H., Herden, D., & Shelah, S. (2017). An extension of M. C. R. Butler’s theorem on endomorphism rings. In Groups, modules, and model theory—surveys and recent developments, Springer, Cham, pp. 277–284. MR: 3675912
@incollection{Sh:1091,
}