Publications with shared reference:

In-Plane Anisotropy of the Penetration Depth in $\mathrm{Y}{\mathrm{Ba}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{7-x}$ and Y${\mathrm{Ba}}_2$${\mathrm{Cu}}_4$${\mathrm{O}}_8$ Superconductors