WOSC 2020 moves to 2021

a WOSC 2020 Congress re-arangement

Due to the effects of the pandemic, the 18th WOSC Congress will take place from 1. to 29. September 2021
During the original Congress dates 16. to 18. September 2020, an on-line event will take place. Additional info: https://www.wosc2020.org/