Learning at the edge: The role of mentors, coaches, and their surrogates in developing expertise, Erich Petushek, Güler Arsal, Paul Ward, Mark Upton, James Whyte IV, Robert R. Hoffman
Michigan Tech Publications

Does talent exist? A re-evaluation of the nature-nurture debate, Paul Ward, Patrick Belling, Erich Petushek, Joyce Ehrlinger
Michigan Tech Publications