1. Global sustainable development report 2019: the future is now – science for achieving sustainable development;Messerli,2019
2. Six transformations to achieve the sustainable development goals;Sachs;Nat Sustain,2019
3. SDG Center for Africa and Sustainable Development Solutions Network. Africa SDG index and dashboards report 2019. Kigali and New York: SDG Center for Africa and Sustainable Development Solutions Network, 2019.
4. United Nations. The Sustainable Development Goals Report 2019. New York: United Nations, 2019
5. Big Earth data: a new frontier in Earth and information sciences;Guo;Big Earth Data,2017