WASET
    Adriano Z. Zambom and  Preethi Ravikumar,  A Comparative Study of Additive and Nonparametric Regression Estimators and Variable Selection Procedures.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 123(3). 109 - 115
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10006600.