@InProceedings{ECOOP94,
author  = "Martin Henz and Gert Smolka",
title   = " Objects in Higher-order Concurrent Constraint Programming
                with State",
booktitle = "Workshop on Coordination Models and Languages for Parallelism
                and Distribution (in connection with ECOOP 94)",
month   = "5 " # jul,
year    = 1994,
address = "Bologna, Italy",
}