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J. Phys. Chem. Ref. Data 37, 1 (2008) https://doi.org/10.1063/1.2816952
J. Phys. Chem. Ref. Data 37, 3 (2008) https://doi.org/10.1063/1.2816953
J. Phys. Chem. Ref. Data 37, 5 (2008) https://doi.org/10.1063/1.2827989
J. Phys. Chem. Ref. Data 37, 7–96 (2008) https://doi.org/10.1063/1.2789451

Energy levels, with classifications and uncertainties, have been compiled for the spectra of the neutral atom and all positive ions of potassium (Z=19). Wavelengths with classifications, intensities, and transition probabilities are also tabulated. In addition, ground states and ionization energies are listed. For many ionization stages experimental data are available; however for those for which only theoretical calculations or fitted values exist, these are reported.

J. Phys. Chem. Ref. Data 37, 97–265 (2008) https://doi.org/10.1063/1.2815328

The microwave spectrum of acetic acid is critically reviewed and supplemented with spectral frequency calculations derived from a rotation-torsion analysis of the first three torsional states. This review provides radio astronomers with complete spectral coverage over the 1–400 GHz range for this important and abundant interstellar molecule.

J. Phys. Chem. Ref. Data 37, 267–706 (2008) https://doi.org/10.1063/1.2735328
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