Shigeaki Sakurai and Ryohei Orihara, Impovement of a Label Extraction Method for a Risk Search System. journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2009, vol. 27(3). 677 - 684 [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/7362.