Comments on "Factors affecting global flow of scientific knowledge in environmental sciences" by Sonne et al. (2020) Pourret, Olivier ; Irawan, Dasapta Erwin ; Tennant, Jonathan P. ; Wien, Charlotte ; Dorch, Bertil F. Abstract Publication: Science of the Total Environment Pub Date: June 2020 DOI: 10.1016/j.scitotenv.2019.136454 Bibcode: 2020ScTEn.72136454P