@ARTICLE{Kwok+Ling-convleasKansmeth:09,
  author       = {Kwok, T. O. and Ling, Leevan},
  title        = {On convergence of a least-squares {K}ansa's method for the modified {H}elmholtz equations},
  year         = {2009},
  journal      = {Adv. Appl. Math. Mech.},
  fjournal     = {Advances in Applied Mathematics and Mechanics},
  volume       = {1},
  number       = {3},
  pages        = {367--382},
}