Multiterminal source coding with complementary delivery
  A coding problem for correlated information sources is investigated. Messages emitted from two correlated sources are jointly encoded, and delivered to two decoders. Each decoder has access to one of the two messages to enable it to reproduce the other message. The rate-distortion function for the coding problem and its interesting properties are clarified. 
Akisato Kimura and Tomohiko Uyematsu