The PNAS paper has a helpful bibliography of recent publications supportive of the hypothesis. It’s worth a separate block quote below.
Nice how the links take you to the cites themselves at the PNAS website.
“Some independent workers have been unable to reproduce earlier YDB results for MSp, CSp, and NDs (6⇓–8), as summarized in a [...]
Allen West, Unidentified Eminent Scientist and George Howard
I was fortunate to attend the YDB session in San Francisco at the Fall Meeting of the American Geophysical Union. With a young family and a growing business it is tough — and selfish — to pull away to the West Coast to play scientist two weeks before Christmas. But I did. And I appreciate the [...]