Donald Knuth's Annual Christmas Tree Lecture: Planar Graphs and Ternary Trees(youtube.com)
youtube.com
Donald Knuth's Annual Christmas Tree Lecture: Planar Graphs and Ternary Trees
https://www.youtube.com/watch?v=VW3vgJYYIok
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https://www.youtube.com/watch?v=VW3vgJYYIok
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