This publication is cited in the following 2 articles:
A. E. Alekseenko, A. S. Kholodov, Ya. A. Kholodov, “Boundary control problems for quasilinear systems of hyperbolic equations”, Comput. Math. Math. Phys., 56:6 (2016), 916–931
S. I. Kabanikhin, “Methods for solving dynamic inverse problems for hyperbolic equations”, Journal of Inverse and Ill-posed Problems, 12:5 (2004), 493