Study of optical absorption and EPR spectra of Mn2+ ion in cadmium maleate dihydrate X. Yang, X. Y. Kuang, C. Lu and H. Wang Eur. Phys. J. D, 42 1 (2007) 35-39 Published online: 13 December 2006 DOI: 10.1140/epjd/e2006-00266-0