Search Results       Your search for [subject]Lefschetz, Solomon, 1884-1972 -- Congresses returned 1 record.           Modern optimal control : a conference in honor of Solomon Lefschetz and Joseph P. LaSalle. New York: M. Dekker, 1989. Subject: Control theory -- Congresses; LaSalle, Joseph P. -- Congresses; Lefschetz, Solomon, 1884-1972 -- Congresses; Mathematical optimization -- Congresses.          Add to Book Cart Relevance: 39.26%