A. K. Zvezdin, G. P. Vorob'ev, A. M. Kadomtseva, Yu. F. Popov, A. P. Pyatakov, L. N. Bezmaternykh, A. V. Kuvardin, E. A. Popova, “Magnetoelectric and magnetoelastic interactions in NdFe<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> multiferroics”, Pis'ma v Zh. Èksper. Teoret. Fiz., 83:11 (2006), 600–605; JETP Letters, 83:11 (2006), 509–514
