The Lennox-Gastaut syndrome Proceedings of a symposium held in Bad Kreuznach, Federal Republic of Germany, September 17-19, 1987 (Neurology and neurobiology) by Ernst Niedermeyer, R. Degen Hardcover, 484 Pages, Published 1988 by Liss ISBN-13: 978-0-8451-2749-0, ISBN: 0-8451-2749-7
The Triumph of Capitalism(1st Edition) by Robert A. Degen Hardcover, 217 Pages, Published 2007 by Transaction Publishers ISBN-13: 978-1-4128-0689-3, ISBN: 1-4128-0689-5