• Synthesis and superconducting properties of Nd0.33Eu0.08Gd0.58Ba2Cu3Oz materialsStoyanova-Ivanova, Angelina; Terzieva, Stanimira; Shivachev, Boris; Mikli, Valdek; Vladimirova, LatinkaCentral European journal of physics2008 / 1, p. 76-79 : ill https://www.degruyter.com/document/doi/10.2478/s11534-007-0044-3/html