The phrase "additional citation" is correct and usable in written English.
It can be used when referring to extra references or sources that support a statement or argument in a text.
Example: "In order to strengthen my argument, I will include an additional citation from a recent study."
Alternatives: "further reference" or "supplementary source".
After publication we found this additional citation: Shinya, Mikio.
However, two major limitations remain both especially important in our field which prompted this additional citation analysis.
She received an additional citation for driving with a "visible monitor" on, which usually applies to TV screens and violates California state law.
They gave an "additional citation" to Bob Dylan in 2008, and to Hank Williams in 2010 – a mere 57 years after the latter's death – but the prize itself has remained almost exclusively the domain of classical music.
Whenever the requirements of this paragraph are satisfied with respect to a particular person, such person shall not be entitled to receive any additional citation of the violation charged, with respect to any conduct of the type described in the citation sent under this paragraph.
Finally, the Introduction has also been expanded to include an additional citation (Johnsson et al., 2013).
In addition, we also hand-searched references for relevant additional citations.
In addition, we contacted authors of some studies and device manufacturers for additional citations and information.
The site maintains a list of words for which editors need additional citations (glatt kosher before 1973, grandkid before 1948).
Follow-up inspections found that 845 properties had no new violations, while 312 of the hazardous conditions still existed, resulting in additional citations.
The administrators have tagged almost every section with provisos: "Its neutrality is disputed"; "needs additional citations for verification"; "reads like an advertisement"; may contain "unverified claims".
