J. I. Arnaudas, K. Dumesnil, C. Dufour, M. R. Wells, R. C. C. Ward, A. del Moral, L. Benito, C. de la Fuente, M. Ciria, and A. Mougin, Magnetoelastic stresses in rare-earth thin films and superlattices, Low Temp. Phys. 27, (2001) [Fiz. Nizk. Temp. 27, 342-363, (2001)].