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Structure and magentic properties of novel chelate complexes of copper(II) and nickel(II) with nitroxide radical ethyl-2-(1-oxyl-2,2,5,5-tetramethylimidazolidin-4-yliden)-3-oxopropanoate

N. V. Pervukhina, V. Reznikov, A. Bogomyakov, 2010 .