
Following our coverage this summer of a book with citations that did not exist, we asked you to send us examples of other books with similar issues. One reader took the request as an assignment to find problematic texts.
Michał Wójcik, a Ph.D. student at the Free University of Berlin, saw a link to our article about the book on LinkedIn. “I started thinking that it shouldn’t be that hard to check those references automatically,” he said. “I decided to just spend some time on it, and I had a prototype in a few hours.”
The Python script he wrote searches through books to verify the existence of each citation by checking if the DOI existed in Crossref. He told us he manually checked citations the script couldn’t identify by looking in other databases and searching on Google Scholar, which takes him between an afternoon and a whole day.
Continue reading Challenge accepted: A reader wrote a program to find fake references in books






