A Survey of Interval Runge-Kutta and Multistep Methods for Solving the Initial Value Problem. - Karol Gajda; Malgorzata A. Jankowska; Andrzej Marciniak; Barbara Szyszka (PPAM, 2007)

The Central Difference Interval Method for Solving the Wave Equation. - Barbara Szyszka (PPAM (2), 2011)

A Central-Backward Difference Interval Method for Solving the Wave Equation. - Andrzej Marciniak; Barbara Szyszka (PARA, 2012)