Jan Domański, Oliver Beckstein, Bogdan I. Iorga; Ligandbook: an online repository for small and drug-like molecule force field parameters, Bioinformatics, Volume 33, Issue 11, 1 June 2017, Pages 1747–1749, https://doi.org/10.1093/bioinformatics/btx037
"Just Because the Sun Wants a Place In the Sky" (F. Zappa)
