An Algorithm for Extracting Phrases in a Space-Optimal Fashion [Z] (Algorithm A444) CACM March, 1973 Wagner, R. A. information retrieval, coding, text compression 3.70 5.6 CA730309 JB January 24, 1978 10:26 AM 1973 4 2530 1992 4 2530 2138 4 2530 2203 4 2530 2251 4 2530 2530 4 2530 2530 4 2530 2537 4 2530 2543 4 2530 2559 4 2530 2573 4 2530 2623 4 2530 2819 4 2530 2991 4 2530 3053 4 2530 3083 4 2530 2107 5 2530 2530 5 2530 2530 5 2530 2530 5 2530 2537 5 2530 2107 6 2530 2530 6 2530