. "Zygmunt Wilf"@en . "Zygmunt \"Zygi\" Wilf (born April 22, 1950) is the principal owner of the Minnesota Vikings of the National Football League."@en . "Wilf, Zygi"@en . "American sports franchise owner" . "Zygi Wilf"@en . . "Wilf, Zygmunt"@en . "1950Z"^^ . . "1950-04-22Z"^^ .