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