Reflestions
Exhibition within the framework of the Presidency of the Republic of Bulgaria […]
Vivacognita, competition “Theme of the Month”
Project Vivacognita competition “Theme of the Month” http://vivacognita.org/_/viva-math/monthly-problem/ Concrete theme: http://vivacognita.org/_/viva-math/monthly-problem/%d1%82%d0%b5%d0%bc%d0%b0-%d0%bd%d0%b0-%d1%84%d0%b5%d0%b2%d1%80%d1%83%d0%b0%d1%80%d0%b8-2015-r35
An online glass exhibition “Glassmath”
Stem Discovery Week 2018 An online glass exhibition “Glassmath” https://www.youtube.com/watch?v=9Xrz4JN2PH8&t=1s https://finearts.nbu.bg/