00308nam a2200121Ia 4500082002000000100002100020245004200041260002900083300002100112490004300133500000500176700000500181  a519.91bC597.ON  aClarke, Frank H.  aOptimization and nonsmooth analysisb  aPhiladelphiabSIAMc1990  axii, 308p. Index  aClassics in Applied Mathematicsv v. 5  a  a