BREŠAR, Matej, 2005, Chuang, Chen-Lian; Lee, Tsiu-Kwen: Algebraic $q$-skew derivations. - J. Algebra 282, No.1, 1-22 (2004). [ISSN 0021-8693]. Zentralblatt MATH database [na spletu]. 2005. [Dostopano 6 april 2025]. Pridobljeno s: http://www.zentralblatt-math.org/zmath/en/command/?q=an:02119551