Systematic Effects among Loss Given Defaults and their Implications on Downturn Estimation. - Jennifer Betz; Ralf Kellner; Daniel Rösch (Eur. J. Oper. Res., 2018)

More Than a Bot? The Impact of Disclosing Human Involvement on Customer Interactions with Hybrid Service Agents. - Ulrich Gnewuch; Stefan Morana; Oliver Hinz; Ralf Kellner; Alexander Maedche (Inf. Syst. Res., 2024)