CdS@Mn(OH)2 nanocomposites: Novel aqueous synthesis, structural and optical propertiesM. S. Abd El-sadek, H. S. Wasly and Hamdy S. El-SheshtawyEur. Phys. J. Plus, 133 12 (2018) 499DOI: https://doi.org/10.1140/epjp/i2018-12403-5