Takashio, Kazunori and Tokoro, Mario "DROL: an object-oriented programming language for distributed real-time systems" pp276-294

[OOPSLA 1992] (1992) [SIGPLAN] Proceedings of the Conference on Object Oriented Programming Systems, Languages and Applications, Oct 1992. (OOPSLA '92)  

Languages mentioned DROL {2000} Concurrent OO Language