When and how much to invest? Investment and capacity choice under product life cycle uncertainty. - Elmar Lukas; Thomas Stefan Spengler; Stefan Kupfer; Karsten Kieckhäfer (Eur. J. Oper. Res., 2017)

Leaving well-worn paths: Reversal of the investment-uncertainty relationship and flexible biogas plant operation. - Gordon Briest; Lars-Peter Lauven; Stefan Kupfer; Elmar Lukas (Eur. J. Oper. Res., 2022)