Measurement of 139La(p,x) cross sections from 35–60 MeV by stacked-target activation Jonathan T. Morrell, Andrew S. Voyles, M. S. Basunia, Jon C. Batchelder, Eric F. Matthews and Lee A. Bernstein Eur. Phys. J. A, 56 1 (2020) 13 Published online: 21 January 2020 DOI: 10.1140/epja/s10050-019-00010-0