**[Huffman52]** D. A. Huffman, *A Method for Construction of
Minimum Redundancy Codes*, Proc. I. R. E., 40, Sept, 1952. [This famous
paper describes the so-called Huffman compression technique wherein each
symbol from a symbol set is given a code of length approximately equal to
the log base 2 of its syntactic information content in the language.]

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