Frey, Jann A., and Samuel Leutwyler. “Binding Energies of Hydrogen-Bonded Cis-Amide and Nucleobase Dimers: An Evaluation of DFT Performance”.
CHIMIA
, vol. 59, no. 7-8, July 2005, p. 511,
https://doi.org/10.2533/000942905777676245
.