> For the record, n.d. means "no date" so your BiBTeX entry must be > missing the year field, for instance.
Actually, it has the field "date". I have read some advice saying that using "date" over "year", "month" and "day" is encouraged, but searching online it appears that it is not supported by BiBTeX (and therefore natbib), only by biblatex. So you're right, it's not a problem of org export. > Check out org-latex-pdf-process maybe? I don't know the library so in depth, but I'll try, thank you! Alessandro