Lenka Techniková and  Maroš Tunák and  Jiří Janáček,  Determination and Comparison of Fabric Pills Distribution Using Image Processing and Spatial Data Analysis Tools.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 82(10). 1260 - 1265
    [viewed 23 September 2020]. Available from: https://publications.waset.org/pdf/16946.