@article{DengWangXuaetal.2020,
  author    = {Zijun Deng and Weiwei Wang and Xun Xua and Oliver E. C. Gould and Karl Kratz and Nan Ma and Andreas Lendlein},
  title     = {Polymeric sheet actuators with programmable bioinstructivity},
  journal   = {PNAS},
  volume    = {117},
  number    = {4},
  pages     = {1895 -- 1901},
  doi       = {10.1073/pnas.1910668117},
  year      = {2020},
}