Vakantie onderzoek 1987 - voortdurend - CVO'87-voortdurend

In order to measure the holiday behaviour of the Dutch population, the Ongoing Holiday Survey - CVO makes use of a large panel of individuals from a cross-section of the Dutch...为调研荷兰民众的假日行为，持续假日调查（Ongoing Holiday Survey - CVO）采用了覆盖荷兰各群体的大型个人固定样本面板。