A Fuzzy Compromise Programming Environment for the ecological evaluation of land use options. - Nguyen-Xuan Thinh; Ralf Hedel (EnviroInfo (1), 2004)

Bewertung der Befahrbarkeit von Böden mit CCMod2 - ein Service auch für die Landwirtschaft. - Petra Zieger; Joachim Biermann; Ralf Hedel (GIL Jahrestagung, 2015)

Optimisation of Preparedness and Response of Health Services in Major Crises Using the IMPRESS Platform. - Nina Dobrinkova; Thomas Finnie; James Thompson; Ian Hall; Christos Dimopoulos; George Boustras; Yianna Danidou; Nectarios Efstathiou; Chrysostomos Psaroudakis; Nikolaos Koutras; George Eftichidis; Ilias Gkotsis; et al. (WCO@FedCSIS, 2017)

Assessment of the European Programme for Critical Infrastructure Protection in the surface transport sector. - Ralf Hedel; George Boustras; Ilias Gkotsis; Ioanna Vasiliadou; Paul Rathke (Int. J. Crit. Infrastructures, 2018)