@article{ackley2013alj,
  author    = {Ackley, David H.},
  title     = {Bespoke Physics for Living Technology},
  journal   = {Artificial Life},
  volume    = {19},
  number    = {3\_4},
  year      = {2013},
  pages     = {347--364},
  doi       = {doi:10.1162/ARTL_a_00117}
}