1. An introductory guide to valve selection;Smith,1995
2. Valve Selection Handbook;Smith,2004
3. National Aeronautics and Space Administration, (1965). Advanced Valve leakage. TECHNOLOGY SURVEY. Kansas City, Missouri: Clearinghouse for Federal Scientific and Technical Information.
4. Mycheme.com, (2014). myChemE » Types of Pressure Relief Devices. [online] Available at: http://www.mycheme.com/types-of-pressure-relief-devices/[Accessed 13 Oct. 2014].
5. National Aeronautics and Space Administration, (1967). Advanced Valve Technology. REVISED AND ENLARGED EDITION. Washington D.C: Technology Utilization Division.