This one of them. Apparently it’s been replicated a couple times. https://pdfs.semanticscholar.org/a6eb/0fba1aa656d7f4f9617c7d35915807f58b94.pdf https://pdfs.s

This one of them. Apparently it’s been replicated a couple times. https://pdfs.semanticscholar.org/a6eb/0fba1aa656d7f4f9617c7d35915807f58b94.pdf https://pdfs.semanticscholar.org/a6eb/0fba1aa656d7f4f9617c7d...