The ACCULINNA-2 project: The physics case and technical challenges A. S. Fomichev, L. V. Grigorenko, S. A. Krupko, S. V. Stepantsov and G. M. Ter-Akopian Eur. Phys. J. A, 54 6 (2018) 97 Published online: 18 June 2018 DOI: 10.1140/epja/i2018-12528-0