Stefano go look at the diff do you see anywhere in the text that you put a reference You have to cite your sources Period End of story You failed to do this so it got removed What the heck is segnalation That s not an English word Claiming that this policy allows to delete unsourced datas it s again a fantasy interpretation This is not a fantasy interpretation it s the basic policy In the first paragraph of WP V it reads Editors should provide a reliable source for quotations and for any material that is challenged or is likely to be challenged or it may be removed bolding for emphasis Don t complain about being unhappey when being rolled back Many many editors have tried to give you positive constructive advice on how to edit so that you don t get rolled back but all you do is ignore their good advice and whine about things When are you going to realize that these editors aren t against you they re trying to help you while keeping the quality of the articles up Speaketh