Demographic Trends and Patterns in the Soviet Union Before 1991 Lutz, Wolfgang Digital bok / 2013 / Engelsk
Quantitative and Qualitative Methods in Psychotherapy Research Lutz, Wolfgang Digital bok / 2014 / Engelsk
Gabler Kompakt-Lexikon Modernes Rechnungswesen Lutz, Wolfgang Becker; Stefan Digital bok / 2018 / Tysk
