Opportunities for Two-Color Experiments in the Soft X-ray Regime at the European XFEL. - Serkez, Svitozar; Decking, Winfried; Froehlich, Lars; Gerasimova, Natalia; Grünert, Jan; Guetg, Marc; Huttula, Marko; Karabekyan, Suren; Koch, Andreas; Kocharyan, Vitali; Kot, Yauhen; Kukk, Edwin; et al. (Applied Sciences (2076-3417), 2020)