G. Alagic and Russell, A.,
“Spectral Concentration of Positive Functions on Compact Groups”,
Journal of Fourier Analysis and Applications , vol. 17, no. 3, pp. 355-373, 2011.
T. S. Cubitt, Chen, J., and Harrow, A. W.,
“Superactivation of the Asymptotic Zero-Error Classical Capacity of a Quantum Channel”,
IEEE Transactions on Information Theory, vol. 57, no. 12, pp. 8114 - 8126, 2011.