This publication is cited in the following articles:
Ni Ming Kang, Wu Li Meng, “A step-type solution for the affine singularly perturbed problem of optimal control”, Autom. Remote Control, 74:12 (2013), 2007–2019
M. G. Dmitriev, G. A. Kurina, “Singular perturbations in control problems”, Autom. Remote Control, 67:1 (2006), 1–43