@unpublished{TUW-217612, author = {Ressl, Camillo}, title = {Matching of Aerial Images: Theory {\&} Practice}, year = {2013}, note = {invited; talk: Innsbrucker Hofburg-Gespr{\"a}ch, ''Drohneneinsatz im zivilen Bereich'', Innsbruck; 2013-04-05} }