Reentrant superconductivity in HoNi5-NbN-HoNi5 nanostructures Gyanendra Singh, P. C. Joshi, Z. Hossain and R. C. Budhani EPL, 103 4 (2013) 47013 Published online: 17 September 2013 DOI: 10.1209/0295-5075/103/47013