TY - JOUR AU - Shahriar Seddighi Chaharborj AU - Jalal Hassanzadeh Asl AU - Babak Mohammadi TI - Optimal control strategy to control pandemic Covid-19 using MSILIHR_V Model JO - Mathematical modelling of natural phenomena PY - 2022 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1051/mmnp/2022015/ DO - 10.1051/mmnp/2022015 LA - en ID - MMNP_2022_17_a2 ER -