I. Giurgiu, K. Zong, J.R. Reynolds, W.-P. Lee, K.R. Brenneman, A.V. Saprigin, A.J. Epstein, J. Hwang, D.B. Tanner,
Dioxypyrrole and dioxythiophene based conducting polymers : properties and applications Synthetic Metals. ,vol. 119, pp. 405- 406 ,(2001) ,
10.1016/S0379-6779(00)01142-5