Deletion of Greg Turk

Comment: Google Scholar http://scholar.google.co.uk/scholar?q=%22Greg+Turk%22&hl=en&lr=&btnG=Search finds papers with 627, 576, 464, 309, 275, 238, 235, 222 & 216 citations, with a further 5 papers >100 citations, and a further 7 papers >50 citations. On several of these he is the first or second author. Highly cited research meets  point 3
Stance: keep
Cited policy: Wikipedia:Notability (WP:PROF)