• Microstructure, properties and atomic level strain in severely deformed rare metal niobiumKommel, Lembit; Saarna, Mart; Traksmaa, Rainer; Kommel, IgorMaterials science = Medžiagotyra2012 / p. 330-335 : ill https://www.researchgate.net/publication/272702114_Microstructure_Properties_and_Atomic_Level_Strain_in_Severely_Deformed_Rare_Metal_Niobium