Kac–Moody and Virasoro symmetries of principal chiral sigma models
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Citation
Lü, H.; Perry, M.J.; Pope, C.N.; Sezgin, E. (2010). Kac–Moody and Virasoro symmetries of principal chiral sigma models. Nuclear Physics, B. Available electronically from https : / /hdl .handle .net /1969 .1 /181456.