Zhang, Z., Yu, M. and Zheng, X. 2023. Existence of nontrivial solutions to Schrödinger systems with linear and nonlinear couplings via Morse theory. Topological Methods in Nonlinear Analysis. 61, 2 (Jun. 2023), 701–716. DOI:https://doi.org/10.12775/TMNA.2022.032.