WASET
    Yogi Satrya Aryadinata and  Anne Laurent and  Michel Sala,  M2LGP: Mining Multiple Level Gradual Patterns.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2013, vol. 75(3). 353 - 360
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/2869.