@ARTICLE{Wand+ChenETAL-Combmethfundsolu:12,
  author       = {Wand, F. and Chen, W. and Ling, L.},
  title        = {Combinations of the method of fundamental solutions for general inverse source identification problems},
  year         = {2012},
  journal      = {Appl. Math. Compt.},
  fjournal     = {Applied Mathematics and Computation},
  volume       = {219},
  number       = {3},
  pages        = {1173-1182},
  doi          = {10.1016/j.amc.2012.07.027}
}