Interstitial impurities in alloys with B19 structure - S. Y. Zaginaichenko; Z. A. Matysina; An. D. Zolotarenko; N. A. Shvachko; Ol. D. Zolotarenko; E. P. Rudakova; N. Y. Akhanova; M. Ualkhanova; D. V. Schur; M. T. Gabdullin (Ukrainian journal of physics, 2023)