G. Heppke, B. Jéròme, H.-S. Kitzerow, and P. Pieranski, “Observation of a hexagonal blue phase in systems with negative dielectric anisotropy,”10.1080/02678298908026387__Liquid Crystals, vol. 5, no. 3, pp. 813–828, 1989, doi:10.1080/02678298908026387 .
LibreCat: /record/40069
DOI: 10.1080/02678298908026387

G. Heppke, B. Jérôme, H.-S. Kitzerow, and P. Pieranski, “Electrostriction of the cholesteric blue phases BPI and BPII in mixtures with positive dielectric anisotropy,”10.1051/jphys:0198900500190299100__Journal de Physique, vol. 50, no. 19, pp. 2991–2998, 1989, doi:10.1051/jphys:0198900500190299100 .
LibreCat: /record/40341
DOI: 10.1051/jphys:0198900500190299100

G. Heppke, B. Jérôme, H.-S. Kitzerow, and P. Pieranski, “Electrostriction of BPI and BPII for blue phase systems with negative dielectric anisotropy,”10.1051/jphys:01989005005054900__Journal de Physique, vol. 50, no. 5, pp. 549–562, 1989, doi:10.1051/jphys:01989005005054900 .
LibreCat: /record/40344
DOI: 10.1051/jphys:01989005005054900

T. K. Halstead, C. Schmidt, H. W. Spiess, R. Schoellhorn, W. Mueller-Warmuth, and H. Moeller, “Magnetic-field-induced orientation of crystallites in powders of layered intercalation compounds detected by NMR,”10.1021/j100337a003__The Journal of Physical Chemistry, vol. 92, no. 26, pp. 7167–7168, 1988, doi:10.1021/j100337a003 .
LibreCat: /record/35393
DOI: 10.1021/j100337a003

C. Schmidt, B. Blümich, and H. W. Spiess, “Deuteron two-dimensional exchange NMR in solids,”10.1016/0022-2364(88)90219-3__Journal of Magnetic Resonance (1969), vol. 79, no. 2, pp. 269–290, 1988, doi:10.1016/0022-2364(88)90219-3 .
LibreCat: /record/35392
DOI: 10.1016/0022-2364(88)90219-3

H.-S. Kitzerow, G. Heppke, F. Oestreicher, H.-S. Kitzerow, and M. Krumrey, “Blue phase liquid crystal system, method of operation and its use .” 1988.
LibreCat: /record/40637

G. Heppke, H.-S. Kitzerow, F. Oestreicher, S. Quentel, and A. Ranft, “Electrooptic Effect in a Non-Polar Nematic Discotic Liquid Crystal,”10.1080/01406566.1988.10767023__Molecular Crystals and Liquid Crystals Letters, vol. 6, no. 3, pp. 71–79, 1988, doi:10.1080/01406566.1988.10767023 .
LibreCat: /record/40406
DOI: 10.1080/01406566.1988.10767023

C. Schmidt, B. Blümich, S. Wefing, S. Kaufmann, and H. W. Spiess, “Molecular motions from two-dimensional NMR of powders: Comparison of rotational jumps and diffusive reorientations,”10.1002/bbpc.19870911113__Berichte der Bunsengesellschaft für physikalische Chemie, vol. 91, no. 11, pp. 1141–1145, 1987, doi:10.1002/bbpc.19870911113 .
LibreCat: /record/35394
DOI: 10.1002/bbpc.19870911113

G. Heppke, H.-S. Kitzerow, and M. Krumrey, “Angular Dependence of Blue Phase Selective Reflection in the Electric Field,”10.1080/00268948708074802__Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, vol. 150, no. 1, pp. 265–276, 1987, doi:10.1080/00268948708074802 .
LibreCat: /record/40338
DOI: 10.1080/00268948708074802

C. Schmidt, S. Wefing, B. Blümich, and H. W. Spiess, “Dynamics of molecular reorientations: direct determination of rotational angles from two-dimensional NMR of powders,”10.1016/0009-2614(86)80431-6__Chemical Physics Letters, vol. 130, no. 1–2, pp. 84–90, 1986, doi:10.1016/0009-2614(86)80431-6 .
LibreCat: /record/35395
DOI: 10.1016/0009-2614(86)80431-6

G. Heppke, F. Oestreicher, H.-S. Kitzerow, and M. Krumrey, “Optisches System mit einer Flüssigkristallzelle, Verfahren zu seinem Betrieb und seine Verwendung.” 1986.
LibreCat: /record/40636

C. Schmidt, K. J. Kuhn, and H. W. Spiess, “Distribution of Correlation Times in Glassy Polymers From Pulsed Deuteron NMR,” Progress in Colloid and Polymer Science, vol. 71, pp. 71–76, 1985.
LibreCat: /record/35399
WoS: A1985AVT4500010

G. HEPPKE, H.-S. Kitzerow, and M. KRUMREY, “ELECTROOPTICAL BEHAVIOR OF CHOLESTERIC BLUE PHASES WITH NEGATIVE DIELECTRIC ANISOTROPY,” MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol. 1, no. 3–4, pp. 117–122, 1985.
LibreCat: /record/40399

G. HEPPKE, H.-S. Kitzerow, and M. KRUMREY, “ELECTRIC-FIELD INDUCED VARIATION OF THE REFRACTIVE-INDEX IN CHOLESTERIC BLUE PHASES,” MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol. 2, no. 1–2, pp. 59–65, 1985.
LibreCat: /record/40395