public function isMdVariant($oArticle)
    {
        if (\OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('blUseMultidimensionVariants')) {
            if (strpos($oArticle->oxarticles__oxvarselect->value, trim($this->_sMdSeparator)) !== false) {
                return true;
            }
        }

        return false;
    }