https://pure.diis.dk/ws/files/3925169/Implications_of_the_Covid_19_pandemic_DIIS_Working_Paper_2020_13.pdf
https://theconversation.com/por-que-colombia-ve-la-legalizacion-de-las-drogas-como-el-camino-a-seguir-221423
https://www.instituteforgovernment.org.uk/brexit-ecj-european-court-justice-lord-neuberger