1. H. E. Stanley, Introduction to Phase Transitions and Critical Phenomena (Oxford Univ. Press, Oxford, 1971).
2. M. F. Collins, Magnetic Critical Scattering (Oxford Univ. Press, Oxford, 1989).
3. S. Sachdev, Quantum Phase Transitions (Cambridge Univ. Press, Cambridge, 1999).
4. M. A. Continentino, Quantum Scaling in Many-Body Systems (World Scientific, Singapore, 2001).
5. G. L. Squires, Introduction to the Theory of Thermal Neutron Scattering (Cambridge Univ. Press, Cambridge, 1978).