California Code, Government Code - GOV § 6549

An indenture providing the terms and conditions for the issuance of the bonds and the covenants relating thereto shall be adopted in or approved by resolution. Such indenture shall describe or state the revenues and funds from which the bonds shall be payable. Such funds or revenues shall include the revenues derived from the operation of the project or projects for which the bond proceeds are used or expended and any other revenues derived therefrom, and may also include revenue, including existing funds, of the entity derived from any other building or buildings, coliseum, stadium, facilities or other sources and any or all extensions or renewals thereof.