@incollection{,
address  = {},
author = {Kocka, Jürgen},
booktitle = {FS Hartmut Zwahr},
keywords = {Europa; Sozialgeschichte; Wirtschaftsgeschichte},
pages = {1-15},
title={Arbeit als Problem der europäischen Geschichte},
uniqueid = {173105},
url = {http://opac.regesta-imperii.de/id/173105},
year = {2002}
}