Stability of supercurrents and condensates in type I superconductors P. Lipavský, K. Morawetz, B. Šopík and M. Männel Eur. Phys. J. B, 87 1 (2014) 8 Published online: 13 January 2014 DOI: 10.1140/epjb/e2013-40932-2