T. Gries and S. Jungblut, “Catching-up and Structural Change,” Economia Internationale, vol. 50, no. 4, pp. 3–24, 1997.

T. Gries, C. Hentschel, and B. Wigger, “Endogenous Growth and R&;D Models - A Critical Appraisal of Recent Developments,” Jahrbücher für Nationalökonomie und Statistik, vol. 213/1, pp. 64–84, 1994.

T. Gries and B. Wigger, “The Dynamics of Upgrading or how to catch-up,” Economia Internationale, vol. 46, no. 4, pp. 3–13, 1993.

T. Gries, “Wechselkurstheorie und internationale monetäre Transmissionen ,” Jahrbuch für Sozialwissenschaften, vol. 41, no. 1, pp. 3–41, 1990.