Μαθημα 4/10/23 Μέρος α
https://uoa.webex.com/webappng/sites/uoa/recording/dd4d8ae844ef103c9a6b322ac8e2837b/playback
Μαθημα 4/10/23 Μέρος β
https://uoa.webex.com/webappng/sites/uoa/recording/966af99444f5103caf7f9eacdf24b46c/playback