%0 Journal Article %A Rocha, Eugénio A.M. %A Torres, Delfim F.M. %T Quadratures of Pontryagin extremals for optimal control problems %J Control and Cybernetics %D 2006 %P 947-963 %V 35 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2006_35_4_a14/ %G en %F CC_2006_35_4_a14