Is it possible to define e.g. a many-to-one reference mapping without declaring a reference object for that property?

E.g.: A user has a relation to 1-n addresses. I want to map these entities together so that hibernate creates a foreign key relation. But I don't want to reference a user-Object within an address Object. Sure, I can use lazy loading, but I only want to declare variables identifiing the associated Object, not the object itself

Hibernate version:
3