YIRKA, Bob. Researchers find citation bias in published papers and evidence that the problem is getting worse. Phys.org [online]. June 1, 2022 [cit. 17.11.2023]. Dostupné online. (anglicky)
plagiarismsearch.com
Citation Definition and Meaning [online]. plagiarismsearch.com, 2021-12-21 [cit. 2023-12-24]. Dostupné online.