Litvinov, V. A., I. I. Okseniuk, D. I. Shevchenko, and V. V. Bobkov. “SIMS Study of the Surface of Lanthanum-Based Alloys”. Ukrainian Journal of Physics, vol. 62, no. 10, Dec. 2018, p. 845, doi:10.15407/ujpe62.10.0845.