Jitter-correction for IR/UV-XUV pump-probe experiments at the FLASH free-electron laser by Savelyev, E, Boll, R, Bomme, C, Schirmel, N, Redlin, H, Erk, B, Düsterer, S, Müller, E, Höppner, H, Toleikis, S, Müller, J, Kristin Czwalinna, M, Treusch, R, Kierspel, T, Mullins, T, Trippel, S, Wiese, J, Küpper, J, Brauβe, F, Krecinic, F, Rouzée, A, Rudawski, P, Johnsson, P, Amini, K, Lauer, A, Burt, M, Brouard, M, Christensen, L, Thøgersen, J, Stapelfeldt, H, Berrah, N, Müller, M, Ulmer, A, Techert, S, Rudenko, A, Rolles, D