Aarts, G. (2001). Spectral function at high temperature in the classical approximation. Physics Letters B, "B518"(3-4), pp. 315-322. doi:10.1016/S0370-2693(01)01081-4

Aarts, Gert. "Spectral Function At High Temperature in the Classical Approximation." Physics Letters B "B518", no. 3-4 (2001): 315-322.

Aarts, Gert. "Spectral Function At High Temperature in the Classical Approximation." Physics Letters B "B518".3-4 (2001): 315-322.