Guangbin Wang and  Liangliang Li and  Fuping Tan,  Convergence Analysis of the Generalized Alternating Two-Stage Method.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2009, vol. 33(9). 625 - 627
    [viewed 26 February 2020]. Available from: https://publications.waset.org/pdf/7714.