BioStor
 | The reduction of Rusbyanthus and the tribe Rusbyantheae (Gentianaceae) R E Weaver Jr (1974) Journal of the Arnold Arboretum 55: 300-302 |
 | Journal of the Arnold Arboretum index to authors and titles, volumes 51-65 (1970-1984) Elizabeth B Schmidt (1985) J. Arnold Arbor. 66: 39-72 |