297031document96351COVID-19 Systems Thinking Presenation.pptxapplication/vnd.openxmlformats-officedocument.presentationml.presentation04e8eaea17098dbc5ee1a8a6c5f765b0MD519383832021-12-07 08:46:50https://pure.iiasa.ac.at/id/eprint/17692/1/COVID-19%20Systems%20Thinking%20Presenation.pptx