Doert, Marlene2013-04-302013-04-302013-04-30http://hdl.handle.net/2003/3028810.17877/DE290R-5363enActive galaxiesAGNGamma ray astronomyMarkarian 501Multi-messenger astronomyUnfolding530The talkative AGN next doorBroad-band spectral variability of the TeV blazar Markarian 501doctoral thesis