1
Electronic Properties of Polymers [E-Book] : Orientation and Dimensionality of Conjugated Systems Proceedings of the International Winter School, Kirchberg, (Tyrol) Austria, March 9–16, 1991 /
2
Electronic Properties of Conjugated Polymers [E-Book] : Proceedings of an International Winter School, Kirchberg, Tirol, March 14–21, 1987 /