Kim, Alan. Plato in Germany: Kant -- Natorp -- Heidegger. Gent: Academia, 2010.
Like Hans Georg Gadamer in his Philosophical Apprenticeships, Alan Kim suggests that we will understand Heidegger's thought better if we know more about his debates with his colleagues at the University of Marburg. In particular, Kim contends that we will not truly understand Heidegger until we understand the position Heidegger was most immediately and directly critiquing in his interpretation of Plato -- that taken by Paul Natorp in his Platos Ideenlehre. . . .
Read the rest here: http://ndpr.nd.edu/review.cfm?id=21108.