Reexamination of the excited states of 12C - Freer,M; Boztosun,I; Bremner,CA; Chappell,SPG; Cowin,RL; Dillon,GK; Fulton,BR; Greenhalgh,BJ; Munoz-Britton,T; Nicoli,MP; Rae,WDM; Singer,SM; et al. (PHYSICAL REVIEW C, 2007)