@article{Hsiao01,
  author = {Chao-Tsung Hsiao and Georges Chahine and Nail Gumerov},
  title = {{Application of a Hybrid Genetic/Powell Algorithm and a
  Boundary Element to Electrical Impedance Tomography}},
  journal = {Journal of Computational Physics},
  volume = {173},
  number = {2},
  pages = {433--454},
  month = {November},
  year = {2001}
}