1. MiddleBrook, R. D.  Input filter considerations in design and applications of switching regulators.
Presented at the IEEE Industry Applications Society Annual Meeting, Chicago, III., Oct, 1976.

2. MiddleBrook, R. D.  Design techniques for preventing input filter oscillations in switched-mode regulators.
In Proceedings of the 5th national Solid State Power Conversion Conference, 1980.

感激不盡~~~