stub zones and reverse delegation

[Lars Hecking]

 The bind manual points to stub zones as a way to delegate RFC1918 reverse
 zones, but in fact, I have been unable to do this sucessfully any other way
 (Ch. 6, section zone Statement Definition and Usage). BIND 9.4.2.

 What is the recommended way to delegate such zones, assuming a scenario
 where one or more subdomains of an organisation's internal network are
 in RFC1918 space (and the top level is not)? As simple as a master zone
 with NS RRs at the top level?