Parallelism across the steps in iterated Runge-Kutta methods for stiff initial value problems. - Piet J. van der Houwen; Ben P. Sommeijer; W. A. van der Veen (Numer. Algorithms, 1994)

Waveform relaxation methods for implicit differential equations. - P. J. van der Houwen; W. A. van der Veen (Adv. Comput. Math., 1997)