Kovner M. A., Potapov S. K. Vibrational and electronic spectra of aromatic six-membered azacyclic compounds // Russian Chemical Reviews. 1967. Vol. 36. No. 8. pp. 620-633.
Kovner M. A., Potapov S. K. Vibrational and electronic spectra of aromatic six-membered azacyclic compounds // Russian Chemical Reviews. 1967. Vol. 36. No. 8. pp. 620-633.
Kovner, Mikhail Arkad'evich, and S K Potapov. “Vibrational and electronic spectra of aromatic six-membered azacyclic compounds.” Russian Chemical Reviews, vol. 36, no. 8, Nov. 1967, pp. 620-633. https://rcr.colab.ws/publications/10.1070/RC1967v036n08ABEH001676.