Pollack, S. A. (1963). "Application of Space‐Group Theory to the Vibrational Problem of di‐Tetramethyl Ammonium Uranium Hexachloride". J. Chem. Phys. 38 (1): 98–108. Bibcode:1963JChPh..38...98P. doi:10.1063/1.1733502.
Pollack, S. A. (1963). "Application of Space‐Group Theory to the Vibrational Problem of di‐Tetramethyl Ammonium Uranium Hexachloride". J. Chem. Phys. 38 (1): 98–108. Bibcode:1963JChPh..38...98P. doi:10.1063/1.1733502.