Chunming Xu,  Gene Expression Data Classification Using Discriminatively Regularized Sparse Subspace Learning.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 394 - 398
    [viewed 27 September 2020]. Available from: https://publications.waset.org/pdf/7397.