PDBe: Protein Data Bank in Europe. - Aleksandras Gutmanas; Younes Alhroub; Gary M. Battle; John M. Berrisford; Estelle Bochet; Matthew J. Conroy; Jose M. Dana; Manuel A. Fernandez Montecelo; Glen van Ginkel; Swanand P. Gore; Pauline Haslam; Rowan Hatherley; et al. (Nucleic Acids Res., 2014)

SANCDB: a South African natural compound database. - Rowan Hatherley; David K. Brown; Thommas M. Musyoka; David L. Penkler; Ngonidzashe Faya; Kevin A. Lobb; Özlem Tastan Bishop (J. Cheminformatics, 2015)