Artykbaeva, M.T., M.A. Eleuov, G.T. Smagulova, and R.E. Beisenov. 2018. “Production of Porous Nickel from Ni/Cu Alloy by Selective Electrochemical Etching”. Combustion and Plasma Chemistry 16 (3-4):226-34. https://cpc-journal.kz/index.php/cpcj/article/view/218.