Superconducting phase transitions in ultrathin TiN films T. I. Baturina, S. V. Postolova, A. Yu. Mironov, A. Glatz, M. R. Baklanov and V. M. Vinokur EPL, 97 1 (2012) 17012 Published online: 03 January 2012 DOI: 10.1209/0295-5075/97/17012