Activity: Talk or presentation types › Invited talk
https://www.youtube.com/playlist?list=PLa_KvzIdYkBRxq0QpqeplYltSEhY8FEcv
https://www.youtube.com/watch?v=ktSqzfEvYc8&list=PLa_KvzIdYkBRxq0QpqeplYltSEhY8FEcv&index=6&t=2s