Philip Kotler/ Roland Berger/ Nils Bickhoff
(2)
Dietmar P. Berger (EDT)/ Monika Engelhardt (EDT)/ Hartmut Hen (EDT)/ Roland Mertelsmann (EDT)/ Michael Andreeff (EDT)
(1)
Roland Berger Strategy Consultants
(1)
Roland Berger Strategy Consultants (COR)
(1)
Roland Berger/ David Grusky/ Tobias Raffel/ Geoffrey Samuels/ Christopher Wimer
(1)