1. Advances in amorphous semiconductors;Singh,2003
2. Photo-induced Metastability in Amorph. Semic.,2003
3. Non-Crystalline chalcogenides;Popescu,2000
4. Semiconducting Chalcogenide Glass I, Glass formation, Structure, and stimulated Transformations in Chalcogenide Glasses, in: Robert K. Willardson, Eicke R. Weber (Eds.), Semiconductors and Semimetals, Treatise, vol. 78, 2004.