Hyunchul Ahn and Kyoung-Jae Kim, Corporate Credit Rating using Multiclass Classification Models with order Information. journal = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology. December 2011, vol. 60(12). 1783 - 1788 [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/3571.