H. Schwenk, F. Gross, CP. Heidmann, K. Andres, D. Schweitzer, H. Keller: ALPHA-(BEDT-TTF)2I3 AND BETA-(BEDT-TTF)2I3 - 2 MODIFICATIONS WITH CONTRASTING GROUND-STATE PROPERTIES - INSULATOR AND VOLUME SUPERCONDUCTOR. 1985Molecular Crystals and Liquid Crystals: 119. ISBN 0140-6566 http://dx.doi.org/10.1080/00268948508075181