1. Andrews, G.R.,Concurrent Programming, Benjamin/Cummings (1991).
2. Back, R.J.R., Kurki-Suonio, R., Distributed Cooperation with Action Systems, ACM Transactions on Programming Languages and Systems, Vol. 10,4 (1988), 513–554.
3. Brinch Hansen, P., Operating System Principles, Prentice-Hall (1973).
4. Buhr, P.A., Fortier, M., Coffn, M.H., Monitor Classification, ACM Computing Surveys 27,1 (1995), 63–107.
5. Bustard, D., Elder, J., Welsh, J., Concurrent Program Structures, Prentice Hall (1988).