That, and mixing reference details from multiple sources and messing it up. Let's say you read a paper on Arxiv but cite the version that was submitted to a jo

That, and mixing reference details from multiple sources and messing it up. Let's say you read a paper on Arxiv but cite the version that was submitted to a journal or conference, without realizing that the authors made changes to the version they submitted and forgot to upload them to Arxiv.