Getting custom resource page into navigation sidebar

class AdStatisticList extends ListRecords {
    protected static ?string $navigationLabel = "XXX";
    protected static bool $shouldRegisterNavigation = true;

 public function panel(Panel $panel): Panel
 {
        return $panel
          ...
          ->navigationItems([
              NavigationItem::make('Werbestatistik')->url(???)
          ])
          ...
}

NavigationItem::make('Werbestatistik')->url(AdStatisticList::getUrl())