I. Laurence Aroquiaraj and  K. Thangavel,  Pectoral Muscles Suppression in Digital Mammograms Using Hybridization of Soft Computing Methods.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 74(2). 300 - 307
    [viewed 27 January 2020]. Available from: https://publications.waset.org/pdf/9996928.