DIN EN 61788-4-2017 超导电性.第4部分:残余电阻比测量.Nb-Ti与Nb3Sn复合超导体的残余电阻比(IEC 61788-4-2016);德文版本EN 61788-4-2016
Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-Ti and Nb3Sn composite superconductors (IEC 61788-4:2016); German version EN 61788-4:2016