@article{article, title  = {{DIFFERENTIALLY SIMPLE RINGS WITH NO INVERTIBLE DERIVATIVES}},

 url = {{}},

 year = {{1981}},

 month = {{1}},

 author = {{JORDAN D}},

 doi = {{10.1093/qmath/32.4.417}},

 volume = {{32}},

 journal = {{Q J MATH}},

 issue = {{128}},

 pages = {{417-424}},

 note = {{Accessed on 2025/05/01}}}