TY - BOOK AU - Fletcher,R. TI - Practical methods of optimization SN - 0471915475, correct U1 - 515 19 PY - 1990/// CY - Chichester PB - Jonh Wiley and sons KW - Mathematical optimization KW - Economía matemática KW - Optimización matemática KW - Investigación operativa N1 - Includes index ER -