About "Genomic history of the Sardinian population 2018"

I would like to have access to the 8 samples from Gairo and the 17 samples from Villagrande from this study:
https://www.readcube.com/articles/su...0215-8&index=2
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6168346/

Where do I turn to get them?
Tried to gmail Charleston W K Chiang but got no response

I would like to know the lowest and highest rate of WHG loschbour for the samples from Gairo and Villagrande, because my estimates don't seem realistic to me at all.

Average for Gairo (8 samples):
82.4% LBK (77.1 to 87.7%)
17.6% WHG (12.3 to 22.9%)
0% Yamnaya

Average for Villagrande Strisaili (17 samples)
84.4% LBK (79.0 to 89.8%)
13.5% WHG (3.5 to 23.5%)
2.10% Yamnaya

Doesn't seem realistic.

Knowing that they have also been modeled with (the first of which could already contain a little WHG):
LBK > Neolithic Germany, LBK380, Stuttgart
WHG > Loschbour

https://imagizer.imageshack.com/img922/9232/iVBfbB.png
https://imagizer.imageshack.com/img922/9697/q9y7m9.png

According to the study: Genealogical criterion: 3 grandparents native to the town.

Thanks.