Business travellers, prepared to give up 15 min of their time to fill out this questionnaire, will be rewarded in an original way, certainly as the K.U. Leuven is such a stately institution: with SwingGift Cheques!
Do you travel by airplane for your work? Go to www.kuleuven.be/enquete/luchtvaartonderzoek
Do you sometimes organise questionnaires yourself? Put in an extra teaser for your participants, with SwingGift, of course.