Shen, S., J. Yi, Z. Sun, Z. Guo, T. He, L. Ma, H. Li, J. Fu, C. Lee, and Z. L. Wang. “Human Machine Interface With Wearable Electronics Using Biodegradable Triboelectric Films for Calligraphy Practice and Correction”. Nano-Micro Letters, vol. 14, Nov. 2022, p. 225, doi:10.1007/s40820-022-00965-8.