_:na5979b2e368d4afc857ec49587c06fe8xb18
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://link.springer.com/article/10.1007/s10534-012-9537-7?error=cookies_not_supported&code=d275963d-7711-4019-96a2-581f5a1091d7>