1. D. M. Lee, R.C. Richardson: ‘Superfluid 3He’. In: The Physics of Liquid and Solid Helium Part II ed. by K.H Bennemann, J.B Ketterson (Wiley, New York 1978)
2. D. Vollhardt, P. Wölfe Superfluid Phases of Helium 3 (Taylor and Francis, London 1999)
3. V. P. Mineev, K.V. Samokhin: Introduction to Unconventional Superconductivity (Gordan and Breach, Amsterdam 1999)
4. P. Brussaard, H.W. Capel: Physica A 265, 370 (1999)
5. Y. Maeno, T.M. Rice, M. Sigrist: Physics Today 54, 42 (2001)