Mathematical modelling of the impact of non-pharmacological strategies to control the COVID-19 epidemic in Portugal
          Caetano, Constantino P.; Morgado, M. Luísa; Paula Patrício; João Paulo Freitas Pereira; Baltazar Nunes  
          
          Mathematics, 9 (10) (2021), 1084  
          https://www.mdpi.com/2227-7390/9/10/1084  
           
            
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