New number of the journal (1/2021) is now available. Please check Current issue item. It includes i.a. papers on Covid-19 pandemic.
In menu of our web page we added new item: Covid-19. It leads to the page: Covid-19 related papers in Problemy Ekorozwoju/ Problems of Sustainable Development. This is the place where we will gather all the papers published on this subject in our journal.