@article {3540,
	title = {Algorithms for Adaptive Huffman Codes},
	journal = {Information Processing Letters},
	volume = {18},
	year = {1984},
	pages = {159--165},
	doi = {10.1016/0020-0190(84)90021-8},
	author = {Gordon Cormack and R. Nigel Horspool}
}
