The reliability of photoneutron cross sections for 90,91,92,94Zr V. V. Varlamov, A. I. Davydov, B. S. Ishkhanov and V. N. Orlin Eur. Phys. J. A, 54 5 (2018) 74 Published online: 14 May 2018 DOI: 10.1140/epja/i2018-12508-4