| Abstract: | The plagiarism detection service CrossCheck has been used since October 2008 as part of the paper reviewing process for the Journal of Zhejiang University – Science (A & B). Between October 2008 and May 2009 662 papers were CrossChecked; 151 of these (around 22.8% of submitted papers) were found to contain apparently unreasonable levels of copying or self‐plagiarism, and 25.8% of these cases (39 papers) gave rise to serious suspicions of plagiarism and copyright infringement. Four types of copying or plagiarism were identified, in an attempt to reach a consensus on this type of academic misconduct. |
