K. N. Minh, C. T. Anh, L. T. Q. Ngan, L. V. Vu, and D. T. Cao, “Synthesis of Flower-like Silver Nanostructures on Silicon and Their Application in Surface-enhanced Raman Scattering”, Comm. Phys., vol. 26, no. 3, p. 241, Jan. 2017.