Kitzerow H-S, Crooker PP, Heppke G. Chromaticity of polymer-dispersed cholesteric liquid crystals. Liquid Crystals. 1992;12(1):49-58. doi:10.1080/02678299208029037
LibreCat: /record/40009
DOI: 10.1080/02678299208029037

Kitzerow H-S, Crooker PP. Behaviour of polymer dispersed cholesteric droplets with negative dielectric anisotropy in electric fields. Liquid Crystals. 1992;11(4):561-568. doi:10.1080/02678299208029010
LibreCat: /record/40013
DOI: 10.1080/02678299208029010

Kitzerow H-S, Xu F, Crooker PP. Microscopic observations of axial and radial nematic droplets for a dual-frequency addressable liquid crystal. Liquid Crystals. 1992;12(6):1019-1024. doi:10.1080/02678299208032817
LibreCat: /record/40008
DOI: 10.1080/02678299208032817

Heppke G, Kitzerow H-S, Lötzsch D, Papenfuß Ch. Blue phase mixtures exhibiting low fractions of a chiral compound experimental observation of some unusual properties. Liquid Crystals. 1990;8(3):407-418. doi:10.1080/02678299008047356
LibreCat: /record/40067
DOI: 10.1080/02678299008047356

Heppke G, Jéròme B, Kitzerow H-S, Pieranski P. Observation of a hexagonal blue phase in systems with negative dielectric anisotropy. Liquid Crystals. 1989;5(3):813-828. doi:10.1080/02678298908026387
LibreCat: /record/40069
DOI: 10.1080/02678298908026387