NF C31-888-23*NF EN IEC 61788-23:2018 Superconductivity - Part 23 : residual resistance ratio measurement - Residual resistance ratio of Nb superconductors
2018NF C31-888-23*NF EN IEC 61788-23:2018 Superconductivity - Part 23 : residual resistance ratio measurement - Residual resistance ratio of Nb superconductors