Wei, H., L. Wang, Z. Li, S. Ni, and Q. Zhao. “Synthesis and Photocatalytic Activity of One-Dimensional CdS@TiO2 Core-Shell Heterostructures”. Nano-Micro Letters, vol. 3, no. 1, Mar. 2011, pp. 6-11, doi:10.1007/BF03353645.