Anisotropic symmetric exchange interaction in metal cluster consisting of exhange-coupled copper ions / V. V. Bannikov and etc. // The Optimization of the Composition, structure and Properties of Metals, Oxides, Composites, Nano- and Amorphous Materials : fifth Israeli-Russian Bi-National Workshop 2006, July 9-14. - Novosibirsk, 2006. - P. 33-38.