Macroscopic angular-momentum states of Bose-Einstein condensates in toroidal trapsM. Benakli, S. Raghavan, A. Smerzi, S. Fantoni and S. R. ShenoyEurophys. Lett., 46 3 (1999) 275-281DOI: https://doi.org/10.1209/epl/i1999-00256-8