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Title:
Towards a characterization of minimal non-4-colourable graphs of crossing number one

Speaker:
Zdenek Dvorak

Link:
http://www.birs.ca/events/2024/5-day-workshops/24w5272/videos/watch/202410021032-Dvorak.html

Workshop:
Birs- 24w5272: New Perspectives in Colouring and Structure