μ analysis for interconnections of systems with negative imaginary frequency response. - Sönke Engelken; Alexander Lanzon; Ian R. Petersen (ECC, 2009)

Distance measures for linear systems with multiplicative and inverse multiplicative uncertainty characterisation. - Sönke Engelken; Alexander Lanzon; Sourav Patra; George Papageorgiou (CDC, 2010)

Robustness analysis and controller synthesis with non-normalized coprime factor uncertainty characterisation. - Sönke Engelken; Alexander Lanzon; Sourav Patra (CDC/ECC, 2011)

Revisiting robust stabilization of coprime factors: The general case. - Sönke Engelken; Alexander Lanzon (CDC, 2012)

Stability analysis of synchronization of parallel power converters. - Roberto Rosso; Giampaolo Buticchi; Marco Liserre; Zhi-Xiang Zou; Sönke Engelken (IECON, 2017)

A Generalized Formulation of Active Power Synchronization Based Control Algorithms for Grid Connected Converters. - Roberto Rosso; Sönke Engelken; Marco Liserre (IECON, 2018)

Parameter Sensitivity Analysis of SPC-based Control Under Different Grid Conditions. - Roberto Rosso; Sönke Engelken; Zhi-Xiang Zou; Viktor Willich; Marco Liserre (IECON, 2018)