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The goal is to study the prevalence of citajacked papers: papers in authenticscientific journals citing hijacked journals, in academic literature. ACitejacked detector was designed as a part of the Problematic Paper Screener(https://www.irit.fr/~Guillaume.Cabanac/problematic-paper-screener/citejacked)to trace if the references to articles originating from hijacked journalsinfiltrate scientific communication. A full-text search was performed betweenNovember 2021 and January 2022 in the Dimensions database using the name of 1of the 12 hijacked journals. The analysis of the bibliography in these articlesrevealed that 828 of them cite unreliable articles from hijacked journals.During 01.Jan.2021-31.Jan.2022, an average of 2 citejacked articles has beenpublished daily in established journals. Given the limited number of titlesincluded in this study, the phenomenon might be wider and is not yetsystematically studied.

Improper legitimization of hijacked journals through citations