Reuten is associate professor of economics in Amsterdam. Member of the ISMT, he has published several essays and works on Marxian economics. In his website you can read many of his contributions. See in particular the chapters for ISMT books. For istance: Marx's general rate of profit transformation: methodological and theoretical obstacles; an appraisal based on the 1864-65 manuscript for 'Das Kapital III'. In Bellofiore, Riccardo and Roberto Fineschi (eds), Re-reading Marx -- New perspectives after the critical edition. (pp. 211-230). London/New York: Palgrave--Macmillan.
See also the International Symposium on Marxian Theory webpage.