When the supreme court takes jurisdiction of an appeal or other proceeding, the rules governing procedures in the court of appeals are applicable to proceedings in the supreme court unless otherwise ordered by the supreme court in a particular case.
Wis. Stat. § 809.63
Rule (Procedure in supreme court)
Sup
Official source: Wisconsin State Legislature. Reproduced from public-domain Wisconsin statutes; confirm against the official source for the current text. Not legal advice.