Twist Morphology of Organic Crystal (BPE-DMB)IBr2 Kazushige Kawabata, Tomonori Kumagai, Makoto Mizutani and Takashi Sambongi J. Phys. I France, 6 12 (1996) 1575-1580 Accepted: 01 July 1996 DOI: 10.1051/jp1:1996175