Petra Kreinhöffner has published the text Potentiale der Bustouristik
18.10.2009 17:13:27
Petra Kreinhöffner has uploaded a new text
30.09.2009 18:51:14
Petra Kreinhöffner's text Bedeutung der Messe im Business-to-Business-Bereich is now available as a printed book
11.02.2009 15:52:00
3 papers