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References to 'extended binary tree'
1.
2-3 tree
by
Mathprof
2.
external path length
by
Logan
3.
Huffman coding
by
Logan
4.
Huffman's algorithm
by
mps
5.
lower bound for sorting
by
stevecheng
6.
minimum weighted path length
by
mathwizard
7.
weighted path length
by
Logan
