This can be implemented using the following syntax, which applies to both
the SEND and REVIEW keywords (I'll use SEND as an example):
 
SEND= item1<,item2<,item3...>>
 
Each 'item' can be:
 
- PUBLIC, PRIVATE, OWNER, POSTMASTER: you probably knew about these.
 
- OWNER(listname): the owners of another list.
 
- SERVICE(listname): people in the service  area of another list. SERVICE
  alone means the service area of the list in question.
 
- (listname): people subscribed to the list in question, OR owning it.
 
Access is granted whenever one of the 'items' is satisfied.
 
For example, you could have:
 
* Review= Private,(STAFF-L),Owner(USERS-L)
 
  Eric