Two-body bound and edge states in the extended SSH Bose-Hubbard model M. Di Liberto, A. Recati, I. Carusotto and C. Menotti Eur. Phys. J. Special Topics, 226 12 (2017) 2751-2762 Published online: 26 July 2017 DOI: 10.1140/epjst/e2016-60388-y