Chao Wang and  Ting-Zhu Huang Chen Jia,  Bi-linear Complementarity Problem.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 74(2). 305 - 310
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/16971.