BioStor
 | A revision of the Old World species of Calophyllum (Guttiferae) P F Stevens (1980) Journal of the Arnold Arboretum 61: 117-699 |
 | 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 |