Direct Analysis of Multiphase Switched-Current Networks Using Signal-Flow Graphs. - Markus Helfenstein; Arnold Muralt; George S. Moschytz (ISCAS, 1995)

Direct analysis and synthesis of multiphase switched-current networks using signal-flow graphs. - Markus Helfenstein; Arnold Muralt; George S. Moschytz (Int. J. Circuit Theory Appl., 1998)

A 3-level PWM ADSL2+ CO line driver. - Sander Gierkink; Kadaba Lakshmikumar; Vinod Mukundagiri; Drahoslav Lím; Arnold Muralt; Fred Larsen (CICC, 2009)