@article{article8c7ef54e,
title   = {Free field realizations of the elliptic affine Lie algebra sl(2,R) circle plus (ΩR/dR)},
author = {Bueno, André and Cox, Ben and Futorny, Vyacheslav},
year = {2009},
doi = {10.1016/j.geomphys.2009.06.007},
journal   = {Journal of Geometry and Physics}
}