Goldberg, L.R. (1993) The structure of phenotypic personality traits. American Psychologist, Vol 48(1), Jan 1993, 26-34. http://dx.doi.org/10.1037/0003-066X.48.1.26
Goldberg, L. R. (1980, May). Some ruminations about the structure of individual differences: Developing a common lexicon for the major characteristics of human personality. Symposium presentation at the meeting of the Western Psychological Association, Honolulu, HI. (No, I have no idea where to find this; I no longer have any access to research dbs.)
Email to siderea at livejournal.com, please.
Many thanks in advance.