Overauthor

In most cases, it is better to "overauthor" in team publications than to "underauthor", to include an individual if there is...

Source: wiktionary

Articles were not then overauthored or overreferenced: the mean number of authors per original article was 1-5 (range 1-4) in 1926, compared with 3-3 (range 1-12) in 1985;

Source: wiktionary

Overauthoring and Failure to Acknowledge

Source: wiktionary

In 1817, which marks the first appearance of The Ancient Mariner as a work by Coleridge, the poem is, by contrast, almost overauthored.

Source: wiktionary