Frankowska H., Tonon D., “Pointwise Second-Order Necessary Optimality Conditions for the Mayer Problem with Control Constraints”, SIAM J. Control Optim., 51:5 (2013), 3814–3843
Mansimov K.B., Mardanov M.J., “Necessary Conditions of the Optimality of the Second Order in Optimal Control Problems Described by the System of Integrodifferential Equations of the Volterra Type”, J. Automat. Inf. Sci., 45:8 (2013), 59–67
Helene Frankowska, Daniela Tonon, 52nd IEEE Conference on Decision and Control, 2013, 538
М. И. Зеликин, Л. В. Локуциевский, Р. Хильдебранд, “Геометрия окрестностей особых экстремалей в задачах с многомерным управлением”, Математическая теория управления и дифференциальные уравнения, Сборник статей. К 90-летию со дня рождения академика Евгения Фроловича Мищенко, Труды МИАН, 277, МАИК «Наука/Интерпериодика», М., 2012, 74–90 ; M. I. Zelikin, L. V. Lokutsievskiy, R. Hildebrand, “Geometry of neighborhoods of singular trajectories in problems with multidimensional control”, Proc. Steklov Inst. Math., 277 (2012), 67–83
Bonnard B., Caillau J.-B., Trelat E., “Second Order Optimality Conditions in the Smooth Case and Applications in Optimal Control”, ESAIM-Control OPtim. Calc. Var., 13:2 (2007), 207–236
В. Ф. Борисов, “Условие Келли и структура лагранжева многообразия в окрестности особой экстремали первого порядка”, Оптимальное управление, СМФН, 19, РУДН, М., 2006, 5–44 ; V. F. Borisov, “Kelley Condition and Structure of Lagrange Manifold in a Neighborhood of a First-Order Singular Extremal”, Journal of Mathematical Sciences, 151:6 (2008), 3431–3472
M. Sigalotti, “Regularity properties of optimal trajectories of single-input control systems in dimension three”, Journal of Mathematical Sciences (New York), 126:6 (2005), 1561
Sigalotti M., “Local Regularity of Optimal Trajectories for Control Problems with General Boundary Conditions”, J. Dyn. Control Syst., 11:1 (2005), 91–123
Agrachev A., Sigalotti M., “On the Local Structure of Optimal Trajectories in R-3”, SIAM J. Control Optim., 42:2 (2003), 513–531
H.J. Sussmann, 1, Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171), 1998, 1