83. For the purposes of this chapter, an interested person is a person who would be a qualified voter entitled to be entered on the referendum list of the applicant municipality if the date of reference, within the meaning of the Act respecting elections and referendums in municipalities (chapter E-2.2), were the date of adoption, by the applicant municipality having the largest population, or a by-law under section 85 to authorize the filing of an application for amalgamation. The provisions of the said Act which pertain to the manner in which legal persons are to exercise their rights apply, adapted as required, to an objection filed under section 90 or 102.