Eugene S. Schwartz, Bruce Kallick. Generating a canonical prefix encoding. Communications of the ACM, 7(3):166-169, 1964. [doi]
@article{SchwartzK64, title = {Generating a canonical prefix encoding}, author = {Eugene S. Schwartz and Bruce Kallick}, year = {1964}, doi = {10.1145/363958.363991}, url = {http://doi.acm.org/10.1145/363958.363991}, researchr = {https://researchr.org/publication/SchwartzK64}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {7}, number = {3}, pages = {166-169}, }