West, J., Akins, R., Francl, J., & Doane, J. (1993). Cholesteric Polymer-Dispersed Light Shutters (1–). Applied Physics Letters. https://doi.org/10.1063/1.109659
West, John, R. Akins, Jim Francl, and J. Doane. 1993. “Cholesteric Polymer-Dispersed Light Shutters”. Applied Physics Letters. https://doi.org/10.1063/1.109659.
West, John, et al. Cholesteric Polymer-Dispersed Light Shutters. Applied Physics Letters, 13 Sept. 1993, https://doi.org/10.1063/1.109659.