@article{WICHTERLE1960hydrophilic,
  author = {WICHTERLE and LÍM},
  title = {Hydrophilic Gels for Biological Use},
  journal = {Nature},
  year = {1960},
  doi = {10.1038/185117a0},
  url = {https://doi.org/10.1038/185117a0}
}

@article{Gong2003double,
  author = {Gong and Katsuyama and Kurokawa and others},
  title = {Double‐Network Hydrogels with Extremely High Mechanical Strength},
  journal = {Advanced Materials},
  year = {2003},
  doi = {10.1002/adma.200304907},
  url = {https://doi.org/10.1002/adma.200304907}
}

@article{Sun2012highly,
  author = {Sun and Zhao and Illeperuma and others},
  title = {Highly stretchable and tough hydrogels},
  journal = {Nature},
  year = {2012},
  doi = {10.1038/nature11409},
  url = {https://doi.org/10.1038/nature11409}
}

@article{Drury2003hydrogels,
  author = {Drury and Mooney},
  title = {Hydrogels for tissue engineering: scaffold design variables and applications},
  journal = {Biomaterials},
  year = {2003},
  doi = {10.1016/S0142-9612(03)00340-5},
  url = {https://doi.org/10.1016/S0142-9612(03)00340-5}
}