@article{KofodWirgesPaajanenetal.2007,
  author    = {Guggi Kofod and Werner Wirges and Mika Paajanen and Siegfried Bauer},
  title     = {Energy minimization for self-organized structure formation and actuation},
  doi       = {10.1063/1.2695785},
  url       = {http://apl.aip.org/},
  year      = {2007},
}