@techreport{TUW-199281, author = {Templ, Matthias and Kowarik, Alexander and Filzmoser, Peter}, title = {EM-based regression imputation using robust methods}, institution = {E105 - Institute of Statistics and Mathematical Methods in Economics; Vienna University of Technology}, year = {2011}, number = {Europ. Commission,FP7-SSH-2007-21732,WP4-D4.2-8} }