Truong, N. X., and N. V. Khanh. “Fabrication and Magnetic Properties of \(\text{Nd}_2\text{Fe}_{14}\text{B/Fe}_{65}\text{Co}_{35}\) Hard Magnetic Ribbons”. Communications in Physics, vol. 23, no. 2, July 2013, p. 147, doi:10.15625/0868-3166/23/2/2787.