Direct observation of the superconducting energy gap developing in the conductivity spectra of niobium. Phys. Rev. B, (57)22:14416-14421, American Physical Society, June 1998. [PUMA: niobium] URL
The phase boundary of superconducting niobium thin films with antidot arrays fabricated with microsphere photolithography. Supercond. Sci. Technol., (25)6:065020, May 2012. [PUMA: films niobium thin]
Niobium stripline resonators for microwave studies on superconductors. Journal of Physics: Conference Series, (568)2:022043, 2014. [PUMA: niobium resonators stripline] URL