Difference based ridge and Liu type estimators in semiparametric regression models. - Esra Akdeniz Duran; Wolfgang K. Härdle; Maria Osipenko (J. Multivar. Anal., 2012)

Corrigendum to "Principal component analysis in an asymmetric norm" [J. Multivariate Anal. 171 (2019) 1-21]. - Ngoc Mai Tran; Petra Burdejová; Maria Osipenko; Wolfgang K. Härdle (J. Multivar. Anal., 2020)

Inferring learners' affinities from course interaction data. - Maria Osipenko (Educ. Inf. Technol., 2022)