Finding the right yardstick: Regulation of electricity networks under heterogeneous environments. - Endre Bjørndal; Mette Bjørndal; Astrid Cullmann; Maria Nieswand (Eur. J. Oper. Res., 2018)

Environmental factors in frontier estimation - A Monte Carlo analysis. - Maria Nieswand; Stefan Seifert (Eur. J. Oper. Res., 2018)