Singhal, A., Pai, M. R., Rao, R., Pillai, K. T., Lieberwirth, I., & Tyagi, A. K. (2013). Copper(I) Oxide Nanocrystals - One Step Synthesis, Characterization, Formation Mechanism, and Photocatalytic Properties. European Journal of Inorganic Chemistry, (14), 2640-2651. doi:10.1002/ejic.201201382.