Every township clerk with whom such statement is filed as required in § 8-3-3 shall record the same and immediately cause notice to be published in the same manner as provided for the publication of notice of the annual township meeting. However, in a township with a population of twenty or fewer resident voters, the notice of the time and place of any special meeting need not be published more than once in any publication, shall be provided not less than three days before the special meeting, and may be provided by first class mail in lieu of publication.
SDCL 8-3-4