
https://theconversation.com/cual-es-el-material-mas-usado-del-mundo-y-el-que-menos-se-investiga-213576

http://d24wuq6o951i2g.cloudfront.net/img/events/458316137/assets/4408d8cf.sbrfebruary2022v8.pdf

https://www.brookings.edu/wp-content/uploads/2018/07/Moulton-report-v2.pdf