Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-Ti and Nb<sub>3</sub>Sn composite superconductors— 69 стр.
Superconductivity -- Part 21: Superconducting wires - Test methods for practical superconducting wires - General characteristics and guidance (IEC 61788-21:2015) (english version)
