protected function processEntryNode($xmlArray)
    {
        $entry = [];
        $entryItem = $xmlArray[Resources::ENTRY];

        if (is_array($entryItem)) {
            foreach ($xmlArray[Resources::ENTRY] as $entryXmlInstance) {
                $entryInstance = new Entry();
                $entryInstance->fromXml($entryXmlInstance);
                $entry[] = $entryInstance;
            }
        } else {
            $entryInstance = new Entry();
            $entryInstance->fromXml($entryItem);
            $entry[] = $entryInstance;
        }

        return $entry;
    }