Impact of group delay on tunable impedance matching networks based on Barium-Strontium-Titanate varactors. - Erick Gonzalez-Rodriguez; Holger Maune; Yuliang Zheng 002; Lufei Shen; Ibrahim Asghar Shah; Klaus Hofmann; Dirk Dahlhaus; Rolf Jakoby (ISSSE, 2012)

Design strategies for integrated high voltage charge pumps. - Lufei Shen; Klaus Hofmann (ECCTD, 2013)

Advanced clock schemes with dead time techniques for high voltage charge pumps. - Lufei Shen; Klaus Hofmann (SoCC, 2013)

Reconfigurable radio frontends for cooperative sensor networks: Tasks and challenges. - Erick Gonzalez-Rodriguez; Holger Maune; Lufei Shen; Ibrahim A. Shah; Dirk Dahlhaus; Klaus Hofmann; Rolf Jakoby (SPAWC, 2013)

Stabilization methods for integrated high voltage charge pumps. - Lufei Shen; Ferdinand Keil; Klaus Hofmann (DDECS, 2014)