For example, Magnetic Properties of Layered Transition Metal Compounds, ed. L. J. De Jongh (Kluwer Academic Publishers, Dordrecht, 1990).
B. Keimer, N. Belk, R. J. Birgeneau, A. Cassanho, C. Y. Chen, M. Greven, M. A. Kastner, A. Aharony, Y. Endoh, R. W. Erwin and G. Shirane: Phys. Rev. B 46 (1992) 14034.