The CIMPA research school “Explicit Number Theory" was organized by CIMPA in conjunction with The University of the Witwatersrand. It was held at the University of the Witwatersrand from the 8th to the 19th of January 2018. Forty participants from 18 countries attended the conference including 16 from South Africa and 24 from other countries: 2 from Benin, Congo, Ghana, India, and Pakistan, 1 from Algeria, Austria, Croatia, Egypt, France, Japan, Israel, Ivory Coast, Mali, Perù, Saudi Arabia, Senegal, and Sudan.
For more information you can visit the offical website and read the report.