AGOF mobile facts 2014-II
AGOF internet facts 2013-12
AGOF internet facts 2012-01
AGOF internet facts 2009-III
Regionale Nutzung von Social Networks in Deutschland 2010-I
AGOF internet facts 2012-04
AGOF internet facts 2011-12
AGOF internet facts 2012-03
AGOF internet facts 2011-11
AGOF internet facts 2010-II