1. Data analysis in the Social Sciences: What about the details.;Ball;Proc. AFIPS Fall Joint Computer Conf., Las Vegas,1965
2. Sur les algorithmes de classification.;Benzécri;Texte multigraphié,1965
3. Statistical analysis as a tool to make patterns emerge from data;Benzécri,1969
4. D.G. Bobrow, Natural language input for a computer problem solving system. Ph.D. Thesis, Mathematics Dept., M.I.T., Cambridge, Massachusetts, 1964