1. ADINA R&D “The ADINA System,” ADINA R & D, Watertown, MA.
2. Allen, M. B., Schwind, B. E., and Wooley, G. R., 1985, “Investigation of Leak Resistance of API 8-Round Connector,” Final Report for API PRAC Project 84-53.
3. API, 1987, API Bul. 5C3.
4. API, 1988a, API Spec. STD 5B.
5. API, 1988b, API. Spec. 5CT.