Jianmin Xing Wei Shao, n− Strongly Gorenstein Projective, Injective and Flat Modules. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. August 2013, vol. 74(2). 255 - 258 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/16764.