Discrete breather and soliton-mode collective excitations in Bose-Einstein condensates in a deep optical lattice with tunable three-body interactionsGalal Ahmed Alakhaly and Bishwajyoti DeyEur. Phys. J. D, 69 4 (2015) 92DOI: https://doi.org/10.1140/epjd/e2015-50464-6