Handbook of Low Cost Airlines Achim Schröder, Alexander Schröder, Andreas Knorr, Bertolt Martin Flick, Birgit Zandke-Schaffhäuser, Borislav Bjelicic, Eva Groeneveld-Deussen, Jobst Grotrian, Katja Bley, Maria Horbert, Michael Hupe, Ralf Teckentrup, Regine Gerike, Roger Sonderegger, Sven Gross, Tammo Gause, Thomas Büermann, Torsten Widmann