PHPePub\Core\EPub::setReferencesTitle PHP Method

    function setReferencesTitle($referencesTitle = "Guide", $referencesId = "", $referencesClass = "references")
    {
        if ($this->isFinalized) {
            return false;
        }
        $this->ncx->referencesTitle = is_string($referencesTitle) ? trim($referencesTitle) : "Guide";
        $this->ncx->referencesId = is_string($referencesId) ? trim($referencesId) : "references";
        $this->ncx->referencesClass = is_string($referencesClass) ? trim($referencesClass) : "references";
        return true;
    }