F. Wudl, D. E. Schafer, W. M. Walsh, L. W. Rupp, F. J. DiSalvo, J. V. Waszczak, M. L. Kaplan, G. A. Thomas,
A systematic study of an isomorphous series of organic solid state conductors based on tetrathiafulvalene The Journal of Chemical Physics. ,vol. 66, pp. 377- 385 ,(1977) ,
10.1063/1.433984