_:n6aa5457959ae47fc9c9c12810605c7acxb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://link.springer.com/article/10.1007/s12274-016-1393-2?error=cookies_not_supported&code=76e15508-02bd-4b9e-80cc-a249c58c6962>