explains customer relationship management (CRM) can be used to learn more about customers' needs and behaviours in order to develop stronger relationships with them.
{. Bastian, and {. Becker (Eds.) Lehr- und Handbücher zu Tourismus, Verkehr und Freizeit Oldenbourg, München u.a., 2., unwesentlich veränd. Aufl edition, (2000)