User  your edits in the Wikipedia article of Portuguese politician Miguel Relvas are welcome and everyone appreciate them including me I just must advise you about the references input A common form of adding references is by adding THIS   pt icon   without any spacing if the reference is in Portuguese instead of being in ENGLISH THEN YOU ADD  HERE YOU PUT THE ACTUAL WEBLINK wwwetc etc etc AND A SPACE AND THEN THE TITLE OF THAT WEBLINK THEN YOU ADD A COMMA  JUST A  AND FINALLY YOU ADD THE OFFICIAL NAME OF TITLE OF TH ESOURCE FOR EXAMPLE TH ETITLE OF A NEWSPAPER MEW FINALLY YOU ADD A SPACE AND THEN INSERT  FILLED WITH THE DATE fOR EXAMPLE JULY   I HOPE I HAD HELP YOU AND WELCOME TO WIKIPEDIA