Kourosh Parand and  Jamal Amani Rad,  Some Solitary Wave Solutions of Generalized Pochhammer-Chree Equation via Exp-function Method.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 991 - 996
    [viewed 19 October 2019]. Available from: https://publications.waset.org/pdf/12551.