): "[We find] that papers with preprints have more citations in any year regardless whether they have a published version. On average of all years, a journal or conference paper with a preprint version (P-JC) has median citation of 00.0, while a non-preprint counterpart (JC-only) receives 0.0 citations, which results in 00.0 citation difference (five times more). All preprints (P-all), regardless whether they have been published in journal/conference, have 0.0 more citations than papers without a preprint version (JC-only)." 