1 - In view of delays and complications in payments, and to put all the dates tuned, these were changed and corrected, being now:
August 10 - deadline for inscriptions by one of the authors;
September 13 - deadline for anyone to register with reduced rate;
2 - The NIF is your CPF or Fiscal Number. You must put this number or the institution that pays the registration, along with other billing data, to pass the invoice.