WASET
    Boontee Kruatrachue and  Narongchai Moongfangklang and  Kritawan Siriboon            ,  Fast Document Segmentation Using Contourand X-Y Cut Technique.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2007, vol. 5(5). 1415 - 1417
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15977.