A friend of mine got his first programming job in 2010 as a programmer assistant of a physics professor who needed to automate the procedures of proving crystal structures from mass produced PhDs impossible using graph theory. He was finding so many fakes, mostly coming from Chinese PhD students he needed to write (and optimize) the software to disprove them at scale.

These PhD papers were apparently the easiest to quickly edit from someone else and push past the uninterested reviewers.