Orca

Henri E. Bal, Vrije Universiteit, Amsterdam, 1986

A language similar to Modula-2, but with support for distributed programming using shared data objects, like Linda. A 'graph' data type removes the need for pointers.

"Orca: A Language for Distributed Processing", H. E. Bal et al, SIGPLAN Notices 25(5):17-24 (May 1990).