William H. Pirkle; David L. Sikkenga; Mark S. Pavlin (1977). "Nuclear magnetic resonance determination of enantiomeric composition and absolute configuration of γ-lactones using chiral 2,2,2-trifluoro-1-(9-anthryl)ethanol". J. Org. Chem.42 (2): 384–387. doi:10.1021/jo00422a061.
