@book{HenzOFCCP:97,
  AUTHOR = {Henz, Martin},
  TITLE = {Objects for Concurrent Constraint Programming},
  Month = oct,
  YEAR = 1997,
  publisher = "Kluwer Academic Publishers",
  address = "Boston",
  series = {The Kluwer International Series in Engineering
        and Computer Science, Volume 426, ISBN 0-7923-8038-X},
}