Removing the outliers in root-MUSIC via conventional beamformer. - Alex B. Gershman; Jörg Ringelstein; Johann F. Böhme (Signal Process., 1997)

Direction finding in random inhomogeneous media in the presence of multiplicative noise. - Jörg Ringelstein; Alex B. Gershman; Johann F. Böhme (IEEE Signal Process. Lett., 2000)

Decoupled estimation of DOA and coherence loss for multiple sources in uncertain propagation environments. - Jörg Ringelstein; Lars Schmitt; Johann F. Böhme (ICASSP, 2001)