Chen, M., Yao, B., Kappl, M., Liu, S., Yuan, J., Berger, R., et al. (2019). Entangled Azobenzene-Containing Polymers with Photoinduced Reversible Solid-to-Liquid Transitions for Healable and Reprocessable Photoactuators. Advanced Functional Materials, 1906752. doi:10.1002/adfm.201906752.