↑Douglas C. Schmidt, Michael Stal, Hans Rohnert, Frank Buschmann "Pattern-Oriented Software Architecture, Volume 2, Patterns for Concurrent and Networked Objects", Wiley, 2000
↑R. Greg Lavender, Douglas C. Schmidt (1995). "Active Object"(PDF). Archived from the original(PDF) on 2010-06-15. Retrieved 2010-06-17.
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