You've linked Michael W. Crossley, the lead author is Michael S. Crossley. The google scholar profile for the latter matches the contact email in the paper and

You've linked Michael W. Crossley, the lead author is Michael S. Crossley. The google scholar profile for the latter matches the contact email in the paper and shows a history of related work. [1] https://scholar.google.com/citations?user=X5W_3dYAAAAJ&hl=en&oi=ao https://scholar.google.com/citations?user=X5W_3dYAAAAJ&hl=en...