Über eingeschränkt reguläre Ringe A. WIDIGER, HUYNH van DINH (1976) Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry
Über reguläre Z-Ringe A. KERTÉSZ, O. STEINFELD (1974) Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry
Une caractérisation des anneaux réguliers à identité polynomiale Annie Page (1973) Publications du Département de mathématiques (Lyon)
Uniformly π -regular rings and semigroups: a survey Stojan Bogdanović, Miroslav Cirić, Tatjana Petković (2000) Zbornik Radova
Unit 1-stable range for ideals. Chen, Huanyin, Chen, Miaosen (2004) International Journal of Mathematics and Mathematical Sciences
Unit-regularity and representability for semiartinian * -regular rings Christian Herrmann (2020) Archivum Mathematicum We show that any semiartinian * -regular ring R is unit-regular; if, in addition, R is subdirectly irreducible then it admits a representation within some inner product space.