RT Journal T1 Global Attractivity of a Nonlocal Delayed and Diffusive SVIR Model A1 Yu Yang PB Acta mathematica scientia,Series A FD 2021-12-26 YR 2021 JF Acta mathematica scientia, Series A JO Acta mathematica scientia,Series A VO 41 IS 6 SP 1864 DO K1 ;SVIR model;Spatial heterogeneity;Lyapunov functional;Global attractivity LK {http://121.43.60.238/sxwlxbA/EN/article/article_16558.shtml}