@article{liang_yang_zhang_li_liang_2016, 
  title={Estimating Lorenz Curve of Income by Cubic Spline with Multiple Knots}, 
  DOI={10.12783/dtcse/cmsam2016/3631}, 
  number={cmsam}, 
  publisher={DEStech Publications}, 
  author={LIANG and YANG and ZHANG and LI and LIANG}, 
  year={2016}, 
  month={Nov}
  }