1. [1] Superconductivity, edited by R. D. Parks, Marcel Dekker, New York (1969).
2. Possible highT c superconductivity in the Ba?La?Cu?O system
3. [3] J. R. Schrieffer, Theory of Superconductivity, Perseus Books, Reading (1983).
4. The Resonating Valence Bond State in La
2
CuO
4
and Superconductivity
5. [5] A. Marouchkine, Room-Temperature Superconductivity, Cambridge International Science Publishing (2004).