@article{ryu_zhang_nagai_2021, 
  title={Revisited Japanese research literature on the stalk contraction and relaxation of stalked ciliates}, 
  DOI={10.1299/mer.21-00252}, 
  publisher={Japan Society of Mechanical Engineers}, 
  author={RYU, Sangjin and ZHANG, Haipeng and NAGAI, Moeto}, 
  year={2021}
  }