DIN EN 61788-12-2014 超导性. 第12部分:超导体基体的体积比测量. Nb3Sn复合超导导线的铜与非铜的体积比 (IEC 61788-12-2013); 德文版本EN 61788-12-2013
Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to non-copper volume ratio of Nb3Sn composite superconducting wires (IEC 61788-12:2013); German version EN 61788-12:2013