- Preparation and characterization of superconducting YBa2(Cu1-xCrx)4O8 oxides by thermal analysisNenartaviciene, G.; Tõnsuaadu, Kaia; Jasaitis, D.; Beganskiene, Aldona; Kareiva, AivarasJournal of thermal analysis and calorimetry2007 / 1, p. 173-178 : ill