Deformed-Helix Ferroelectric Effect in Polymer-Dispersed Ferroelectric Liquid Crystals
H. Molsen, H.-S. Kitzerow, G.  Heppke, SID Digest of Technical Papers XXIII (1992) 773–775.

Blue Phases
P.P. Crooker, H.-S. Kitzerow, Condensed Matter News 1 (1992) 6–11.

Polymer-dispersed cholesteric liquid crystals - challenge for research and application
H.-S. Kitzerow, P.P. Crooker, Ferroelectrics 122 (1991) 183–196.

Line shapes of field-induced blue-phase-III selective reflections
H.-S. Kitzerow, P. Crooker, G. Heppke, Physical Review Letters 67 (1991) 2151–2154.

Strain-induced anchoring transitions
H.-S. Kitzerow, B. Jérôme, P. Pieranski, Physica A: Statistical Mechanics and Its Applications 174 (1991) 163–194.

The Effect of Electric Fields on Blue Phases
H.-S. Kitzerow, Molecular Crystals and Liquid Crystals 202 (1991) 51–83.

Chirale Flüssigkristalle - Selektive Reflexion in Phasen ohne Spiegelsymmetrie
H.-S. Kitzerow, H. Schmid, G. Heppke, Labor 2000, Sonderausgabe der Zeitschrift LaborPraxis, Vogel Verlag, München (1991) 6–11.

Blue phase mixtures exhibiting low fractions of a chiral compound experimental observation of some unusual properties
G. Heppke, H.-S. Kitzerow, D. Lötzsch, Ch. Papenfuß, Liquid Crystals 8 (1990) 407–418.

Dynamics of blue-phase selective reflections in an electric field
H.-S. Kitzerow, P.P. Crooker, S.L. Kwok, J. Xu, G. Heppke, Physical Review A 42 (1990) 3442–3448.

A blue phase with negative dielectric anisotropy in an electric field. Statics and dynamics
H.-S. Kitzerow, P.P. Crooker, S.L. Kwok, G. Heppke, Journal de Physique 51 (1990) 1303–1312.

First optical observation of Kossel diagrams in chiral smectic phases
H.-S. Kitzerow, G. Heppke, H. Schmid, B. Jérôme, P. Pieranski, Journal de Physique 51 (1990) 2087–2099.

Observation of a hexagonal blue phase in systems with negative dielectric anisotropy
G. Heppke, B. Jéròme, H.-S. Kitzerow, P. Pieranski, Liquid Crystals 5 (1989) 813–828.

Electrostriction of the cholesteric blue phases BPI and BPII in mixtures with positive dielectric anisotropy
G. Heppke, B. Jérôme, H.-S. Kitzerow, P. Pieranski, Journal de Physique 50 (1989) 2991–2998.

Electrostriction of BPI and BPII for blue phase systems with negative dielectric anisotropy
G. Heppke, B. Jérôme, H.-S. Kitzerow, P. Pieranski, Journal de Physique 50 (1989) 549–562.

Blue phase liquid crystal system, method of operation and its use 
H.-S. Kitzerow, G. Heppke, F. Oestreicher, H.-S. Kitzerow, M. Krumrey, (1988).

Electrooptic Effect in a Non-Polar Nematic Discotic Liquid Crystal
G. Heppke, H.-S. Kitzerow, F. Oestreicher, S. Quentel, A. Ranft, Molecular Crystals and Liquid Crystals Letters 6 (1988) 71–79.

Angular Dependence of Blue Phase Selective Reflection in the Electric Field
G. Heppke, H.-S. Kitzerow, M. Krumrey, Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics 150 (1987) 265–276.

Optisches System mit einer Flüssigkristallzelle, Verfahren zu seinem Betrieb und seine Verwendung
G. Heppke, F. Oestreicher, H.-S. Kitzerow, M. Krumrey, (1986).

ELECTROOPTICAL BEHAVIOR OF CHOLESTERIC BLUE PHASES WITH NEGATIVE DIELECTRIC ANISOTROPY
G. HEPPKE, H.-S. Kitzerow, M. KRUMREY, MOLECULAR CRYSTALS AND LIQUID CRYSTALS 1 (1985) 117–122.

ELECTRIC-FIELD INDUCED VARIATION OF THE REFRACTIVE-INDEX IN CHOLESTERIC BLUE PHASES
G. HEPPKE, H.-S. Kitzerow, M. KRUMREY, MOLECULAR CRYSTALS AND LIQUID CRYSTALS 2 (1985) 59–65.