Leroy, G., & Ruelle, P. (1980). Contribution a l’etude theorique de la liaison hydrogene. VII. les complexes RF …HF (R = CH3 , NH 2 , OH , H). Advances in Molecular Relaxation and Interaction Processes, 16(2), 131-148. https://doi.org/10.1016/0378-4487(80)80012-4 (Original work published 1980)