Mahan A.H., R.C. Reedy, E. Iwaniczko, Q. Wang, B.P. Nelson, Y. Xu, A.C. Gallagher, H.M. Branz, R.S. Crandall, J. Yang, and S. Guha, Mrs Proceedings 507, (1998).
Mahan A.H., Y. Xu, B.P. Nelson, R.S. Crandall, J.D. Cohen, K.C. Palinginis, and A.C. Gallagher, Applied Physics Letters 78, 3788 (2001).