Huang, Y., D. K. Sarkar, and X.-G. Chen. “Fabrication of Superhydrophobic Surfaces on Aluminum Alloy Via Electrodeposition of Copper Followed by Electrochemical Modification”. Nano-Micro Letters, vol. 3, no. 3, Sept. 2011, pp. 160-5, doi:10.1007/BF03353667.