@misc{Paul2014, author = {Gerhard Paul}, title = {Visual History (Version 2.0)}, edition = {Version 2.0}, doi = {10.14765/zzf.dok.2.258.v2}, url = {http://docupedia.de/zg/paul_visual_history_v2_de_2012}, type = {webpublication}, year = {2014}, }