https://deliverypdf.ssrn.com/delivery.php?ID=699064116031074097080119119096104025123011062088031092022074117100022099028123123089013000007026033049005013005126094091005100102026033060067066109024116069018089074002003007013019074066098098099075020103066080070105123014096075110073110119014118065027&EXT=pdf&INDEX=TRUE
https://www.emcdda.europa.eu/system/files/publications/13838/TDAT21001ENN.pdf
https://carnegieeurope.eu/2022/04/25/coronavirus-and-widening-global-north-south-gap-pub-86891?utm_source=carnegieemail&utm_medium=email&utm_campaign=announcement&mkt_tok=ODEzLVhZVS00MjIAAAGD_uyq2trdY8EnkvIOP6lO5HZkGZ9dH8lqSQapEK0PFyQnzQW0t8lo5P6xwBOgeVL_vQoUjtkDKgS2VrfgFZPpA82sEd5fny8nrA5I