%0 conference poster %@ %A Sobierajski, R.,Krzywinski, J.,Andrejczuk, A.,Faatz, B.,Felten, F.,Jakobi, S.,Juha, L.,Jurek, M.,Kauch, A.,Klinger, D.,Pelka, J.B.,Saldin, E.,Schneidmiller, E.,Sikora, M.,Steeg, B.,Yurkov, M. %D 2002 %J FEL 2002, 24th International Free Electron Laser Conference and 9th FEL Users Workshop %N %P %T Structural changes at solid surfaces irradiated with femtosecond, intense XUV pulses generated by TTF-FEL %U %X