A. Arnold, M. Ehrhardt and I. Sofronov, "A fast method to implement non-local discrete transparent boundary conditions for the Schrödinger equation" in PAMM: Proceedings in Applied Mathematics and Mechanics, 2003, pp. 424--425.

S. H. M. J. Houben, E. J. W. Maten and M. F. Sevat, "A new transient integration method for free-running oscillators" in Analog 2003 -- Entwicklung von Analogschaltungen mit CAE-Methoden mit dem Schwerpunkt Entwurfsverfahren für Automotive-Anwendungen, R. Vahrmann, Eds. Sep. 2003, pp. 61-66.

M. Günther, "A refined PDAE network model for a CMOS ring oscillator" in Modeling, Simulation, and Optimization of Integrated Circuits: Proceedings of a Conference held at the Mathematisches Forschungsinstitut, Oberwolfach, November 25-December 1, 2001, Antreich, K. and {et al.}, Eds. Birkh\"auser Verlag, Basel, 2003, pp. 203--218.

G. Al, A. Bartel and M. Günther,Analysis of coupled systems in chip design. .... Universität Karlsruhe, Institut für Wissenschaftliches Rechnen und~…, 2003.

A. Arnold, M. Ehrhardt and I. Sofronov, "Approximation, stability and fast calculation of non-local boundary conditions for the Schrödinger equation", Commun. Math. Sci, vol. 1, no. 3, pp. 501--556, 2003.