<http://schema.org/alternateName>
"Ziegler-Natta\u89E6\u5A92\u306B\u304A\u3051\u308B\u7ACB\u4F53\u7279\u7570\u6027\u306E\u5236\u5FA1"^^<http://www.w3.org/2001/XMLSchema#string>
<http://ci.nii.ac.jp/naid/500000078026>