https://api.elsevier.com/content/article/pii/S0960077920302411doi:10.1016/j.chaos.2020.1098411-s2.0-S096007792030241110.1016/j.chaos.2020.109841S0960-0779(20)30241-1Estimation of COVID-19 dynamics “on a back-of-envelope”: Does the simplest SIR model provide quantitative parameters and predictions? Chaos, Solitons & FractalsJournal096007792020-06-30June 20200falsefalse