1. Introduction
to Helium Mass Spectrometer Leak Detection, Varian Associates Inc., Palo Alto, 1080
2. J.M. Lafferty (ed.), Foundations of Vacuum Science and Technology (Wiley, New York, 1997)
3. E.H. Kennard, Kinetic Theory of Gases (MacGraw-Hill, New York, 1938)
4. Leak testing of large containers, American Gas and Chemical Co. Ltd, Large.containers.mht
5. C. Moon, W.C. Brown, S. Mellen, E. Erenz, D.J. Pickering, Ultrasound techniques for leak detection, 2009-01-2159, SAE international, New York