@article{article520e439b,
title   = {Free-Fermion energies in the SU(N) Perk-Schultz model},
author = {Alcaraz, Francisco Castilho and Stroganov, Yu. G.},
year = {2004},
doi = {10.1142/S0217751X04020270},
journal   = {International Journal of Modern Physics A}
}