{{todo|* {{ User:NicoV/ISBN Warning | revisionid=875583851 | 978-3-931473-16-4 | Computing the checksum gives 7, not 4 }} -- 21:02, 3 January 2019 (UTC) <!-- This line is updated from time to time by a bot. -->}}renders as:
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 Your help is requested to fix invalid ISBN numbers (explanation) that have been found in the article:
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* {{ User:NicoV/ISBN Warning | revisionid=875583851 | 978-3-931473-16-4 | Computing the checksum gives 7, not 4 }} -- 21:02, 3 January 2019 (UTC) <!-- This line is updated from time to time by a bot. -->}}renders as:
To-do list is empty: remove {{To do}} tag or click on edit to add an item. Priority
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