Neb. Rev. Stat. § 16-619: Neb. Rev. Stat. § 16-619

For every improvement district within which any of the improvements are to be funded by a levy of special assessments on the property especially benefited, after the passage, approval, and publication of an ordinance creating such district, the city clerk shall publish notice of the creation of any such district or districts one time each week for not less than twenty days in a legal newspaper in or of general circulation in the city.