wrong URL link Matthias Bopp, University of Zurich 1 December 2014 The first URL address of used data sources (page 2, first line of second column) is correct in the print version, but not in the corresponding pointer, thus impeding a successful automatic link when clicking on the text mark. The correct URL is http://www.bfs.admin.ch/bfs/portal/de/index/infothek/erhebungen__quellen/blank/blank/ess/04.html sorry for any inconvenience Competing interests None declared
wrong URL link
1 December 2014
The first URL address of used data sources (page 2, first line of second column) is correct in the print version, but not in the corresponding pointer, thus impeding a successful automatic link when clicking on the text mark. The correct URL ishttp://www.bfs.admin.ch/bfs/portal/de/index/infothek/erhebungen__quellen/blank/blank/ess/04.html
sorry for any inconvenience
Competing interests
None declared