Altenkamp, Doris Max Planck Society;
Mehlhorn, Kurt Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Ausiello, Giorgio Max Planck Society;
Böhm, Corrado Max Planck Society;
Altenkamp, D., & Mehlhorn, K. (1978). Codes: Unequal Probabilities, Unequal Letter Cost. In Automata, languages and programming (ICALP-78): 5th international colloquium (pp. 15-25). Berlin, Germany: Springer.