referential members continued
3.1.8 It is possible for an referential member of a collection to carry its own properties, distinct from those of the resource it refers to.
3.1.9 An referential member of a collection also inherits the properties of the resource it refers to.
- so that referential members look like internal members
- an exception to 3.1.4
3.1.10 A listing of the members of a collection shows both the internal members and the referential members.