@ARTICLE{Ling+Ye-meshnumediff:18,
  author       = {Ling, L. and Ye, Q.},
  title        = {On meshfree numerical differentiation},
  journal      = {Analysis and Applications},
  volume       = {16},
  number       = {5},
  pages        = {717-739},
  year         = {2018},
}