@book { Lutz1969,
title = {Informationen zur Situation des Jugendarbeitsschutzes },
author = {Lutz, Burkart and Seyfarth, Constans },
pages = {116 },
volume = {02/1969 },
year = {1969 },
publisher = {DJI Verl. },
url = {http://nbn-resolving.de/urn:nbn:de:0168-ssoar-246791 },
}