Mo. Rev. Stat. § 353.080
In the event that any action with respect to which the holders of income debentures shall have the right to vote is proposed to be taken, notice of any meeting at which such action is proposed to be taken shall be given to such holders in the same manner and to the same extent as if they were stockholders entitled to notice of and to vote at such meeting, and any articles filed pursuant to law in the office of the secretary of state with respect to any such action, whether taken with or without meeting, and any affidavit required by law to be annexed to such articles shall contain the same statements or recitals, and such articles shall be subscribed and acknowledged, and such affidavit shall be made, in the same manner as if such debenture holders were stockholders holding shares of an additional class of stock entitled to vote on such action, or with respect to the proceedings provided for in such document.
§ 353.080, RSMo