H. E. Michail and  V. N. Thanasoulis and  G. A. Panagiotakopoulos and  A. P. Kakarountas and  C. E. Goutis,  Efficient Pipelined Hardware Implementation of RIPEMD-160 Hash Function.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2008, vol. 14(2). 183 - 186
    [viewed 20 October 2019]. Available from: https://publications.waset.org/pdf/14502.