What did a recent research paper claim?

最近的一篇研究论文是怎么说的？

youdao

The result, they claim in a paper that will appear this month in the Journal of Physical Chemistry, is a nanofibre material with an extremely high ratio of surface-area to volume.

ECONOMIST: Space-age soot

The BBC confirmed that the claim came from a 2006 paper by the Working Group on Climate Change.

BBC: Africa TV series edited over climate change comment

One item is a claim form from a journalist on this paper back from a trip to America a century ago.

ECONOMIST: Inflation since 1900