(1) The declaration referred to in article 14 shall, together with the signature of each voter, show a legally valid identification document number of the voter signing it, his address and the electoral district wherein he is registered as a voter.

(2) The proposers of the referendum, being not less than five and not more than ten, shall sign the declaration before all other persons indicating that they are signing the same as proposers.

(3) The Electoral Commission shall have a right to ascertain that the persons actually appearing as signatories of the declaration have in fact signed it, and any signature which does not result to have been made by the person appearing to have made it shall be ignored by the Electoral Commission.