Masreliezs theorem  Hello Doug first thank you for your sensible recommendations on my talk page on minor edits For years I have just followed the practise of fellow users as you noted without knowing there were any rules set  As for your recent two reverts on Masreliezs theorem now in a state of siege as is my person by actions of user jpsSA The first revert should not need any ref since it is what the entire article is about Maybe key could be replaced by something milder that a native speaker can find more proper The second one I have supported before with  third party relevant references from Academic Search which I reckon a reliable source at least when it comes to just support a number four of which are mentioned in the following text