Д. В. Аносов, С. М. Асеев, Р. В. Гамкрелидзе, С. П. Коновалов, М. С. Никольский, Н. Х. Розов, “Евгений Фролович Мищенко (к девяностолетию со дня рождения)”, УМН, 67:2(404) (2012), 193–207 ; D. V. Anosov, S. M. Aseev, R. V. Gamkrelidze, S. P. Konovalov, M. S. Nikol'skii, N. Kh. Rozov, “Evgenii Frolovich Mishchenko (on the 90th anniversary of his birth)”, Russian Math. Surveys, 67:2 (2012), 385–402
Poggiolini L., Stefani G., “Bang-Singular-Bang Extremals: Sufficient Optimality Conditions”, J Dynam Control Systems, 17:4 (2011), 469–514
Chittaro F.C., Stefani G., “Singular extremals in multi-input time-optimal problems: a sufficient condition”, Control Cybernet, 39:4 (2010), 1029–1068
Agrachev A.A., “Any sub-Riemannian metric has points of smoothness”, Doklady Mathematics, 79:1 (2009), 45–47
Stefani G., “Strong Optimality of Singular Trajectories”, Geometric Control and Nonsmooth Analysis, Series on Advances in Mathematics for Applied Sciences, 76, 2008, 300–326
Stefani G., “Minimum-time optimality of a singular arc: second order sufficient conditions”, 2004 43rd IEEE Conference on Decision and Control (CDC), IEEE Conference on Decision and Control - Proceedings, 2004, 450–454
Felgenhauer U., “On stability of bang-bang type controls”, SIAM J Control Optim, 41:6 (2003), 1843–1867
Stefani G., “On sufficient optimality conditions for a singular extremal”, 42nd IEEE Conference on Decision and Control, 2003, 2746–2749
Agrachev A.A., Stefani G., Zezza P., “Strong optimality or a bang-bang trajectory”, SIAM J Control Optim, 41:4 (2002), 991–1014
Agrachev A., Stefani G., Zezza P., “An invariant second variation in optimal control”, International Journal of Control, 71:5 (1998), 689–715