Ye , ZichengZhang , HuaziLi , RongWang , JunYan , Guiying and Ma , Zhiming. (2023). Improving the Gilbert-Varshamov Bound by Graph Spectral Method. CSIAM Transactions on Applied Mathematics. 4 (1). 1-12. doi: 10.4208/csiam-am.SO-2021-0024