Wis. Stat. § 234.09
The notes and bonds shall be authorized by resolution of the members of the authority; shall bear such date or dates, and shall mature at such time or times, in the case of any note, or any renewal thereof, not exceeding 5 years, from the date of issue of such original note, and in the case of any bond not exceeding 50 years from the date of issue, as the resolution provides. The notes and bonds shall bear interest at such rate or rates, be in such denominations of $1,000 or more, be in such form, either coupon or registered, carry such registration privileges, be executed in such manner, be payable in such medium of payment, at such place and be subject to such terms of redemption as the resolution provides. The bonds may be issued as serial bonds payable in annual installments or as term bonds or as a combination thereof. The notes and bonds of the authority may be sold by the authority, at public or private sale, at the price determined by the authority.
Wis. Stat. § 234.09