Cheng, X., Li, K., & Zhang, Z. (2022). Liouville-type theorems for generalized Hénon-Lane-Emden Schrödinger systems in $R^2$ and $R^3$. Topological Methods in Nonlinear Analysis, 59(1), 331–357. https://doi.org/10.12775/TMNA.2021.028