Kitzerow, Heinz-Siegfried, et al. “Chromaticity of Polymer-Dispersed Cholesteric Liquid Crystals.”10.1080/02678299208029037__Liquid Crystals, vol. 12, no. 1, Informa UK Limited, 1992, pp. 49–58, doi:10.1080/02678299208029037.
LibreCat: /record/40009
DOI: 10.1080/02678299208029037

Kitzerow, Heinz-Siegfried, and P. P. Crooker. “Behaviour of Polymer Dispersed Cholesteric Droplets with Negative Dielectric Anisotropy in Electric Fields.”10.1080/02678299208029010__Liquid Crystals, vol. 11, no. 4, Informa UK Limited, 1992, pp. 561–68, doi:10.1080/02678299208029010.
LibreCat: /record/40013
DOI: 10.1080/02678299208029010

Kitzerow, Heinz-Siegfried, et al. “Microscopic Observations of Axial and Radial Nematic Droplets for a Dual-Frequency Addressable Liquid Crystal.”10.1080/02678299208032817__Liquid Crystals, vol. 12, no. 6, Informa UK Limited, 1992, pp. 1019–24, doi:10.1080/02678299208032817.
LibreCat: /record/40008
DOI: 10.1080/02678299208032817

Heppke, G., et al. “Blue Phase Mixtures Exhibiting Low Fractions of a Chiral Compound Experimental Observation of Some Unusual Properties.”10.1080/02678299008047356__Liquid Crystals, vol. 8, no. 3, Informa UK Limited, 1990, pp. 407–18, doi:10.1080/02678299008047356.
LibreCat: /record/40067
DOI: 10.1080/02678299008047356

Heppke, G., et al. “Observation of a Hexagonal Blue Phase in Systems with Negative Dielectric Anisotropy.”10.1080/02678298908026387__Liquid Crystals, vol. 5, no. 3, Informa UK Limited, 1989, pp. 813–28, doi:10.1080/02678298908026387.
LibreCat: /record/40069
DOI: 10.1080/02678298908026387