Formation of N2(B, v′) levels in N2, N2/Ar and N2/He reduced pressure late afterglows Valentin Ferrer, Jean-Pierre Gardou, Frédéric Marchal, André Ricard and Jean-Philippe Sarrette Eur. Phys. J. D, 76 10 (2022) 191 Published online: 13 October 2022 DOI: 10.1140/epjd/s10053-022-00512-5