private static Element getMathElement(Document metaDocument, String uuid) {
        Element mathElement = metaDocument.createElement(META_MATH_MODEL_WORK_ELEMENT);
        mathElement.setAttribute(META_MODEL_ENTRY_NAME_WORK_ATTRIBUTE, MATH_MODEL_WORK_ENTRY);
        mathElement.setAttribute(META_MODEL_FORMAT_UUID_WORK_ATTRIBUTE, uuid);
        return mathElement;