[1] Nicholson W K. Strongly clean rings and Fitting’s lemma [J]. Comm Algebra, 1999, 27(8):3583-3592.
[2] Borooah G, Diesl A J, Dorsey T J. Strongly clean triangular matrix rings over local rings [J].J Algebra, 2007, 312(2): 773-797.
[3] Borooah G, Diesl A J, Dorsey T J. Strongly clean matrix rings over commutative local rings [J]. J Pure Appl Algebra, 2008, 212(1): 281-296.
[4] Chen H Y, Chen M S. On clean ideals [J]. Internat J Math Sci, 2003, 62: 3949-3956.
[5] Chen J L, Yang X D, Zhou Y Q. On strongly clean matrix and triangular matrix rings [J]. Comm Algebra, 2006, 34(10): 3659-3674.
[6] Chen J L, Yang X D, Zhou Y Q. When is the 2×2 matrix ring over a commutative local ring strongly clean? [J]. J Algebra, 2006, 301(1): 280-293.
[7] Li Y L. Strongly clean matrix rings over local rings [J]. J Algebra, 2007, 312(1): 397-404.
[8] Wang Z, Chen J L. On two open problems about strongly clean rings [J]. Bull Austral Math Soc, 2004, 70(2): 279-282.
[9] Yang X D, Zhou Y Q. Strong cleanness of the 2×2 matrix ring over a general local ring [J]. J Algebra, 2008, 320(6): 2280-2290.
[10] Chen J L, Wang Z, Zhou Y Q. Rings in which elements are uniquely the sum of an idempotent and a unit that commute [J]. J Pure Appl Algebra, 2009, 213(2): 215-223.
[11] Nicholson W K, Zhou Y Q. Rings in which elements are uniquely the sum of an idempotent and a unit [J]. Glasgow Math J, 2004, 46(2): 227-236.