Gutierrez Jimenez N. Torba S.M., “Analytic Approximation of Transmutation Operators For One-Dimensional Stationary Dirac Operators and Applications to Solution of Initial Value and Spectral Problems”, J. Math. Anal. Appl., 504:2 (2021), 125392
Rzepnicki L., “Asymptotic Behavior of Solutions of the Dirac System With An Integrable Potential”, Integr. Equ. Oper. Theory, 93:5 (2021), 55
Baskakov A.G., Krishtal I.A., Uskova N.B., “Spectral Properties of the Dirac Operator on the Real Line”, Differ. Equ., 57:2 (2021), 139–147
A. G. Baskakov, I. A. Krishtal, N. B. Uskova, “On the spectral analysis of a differential operator with an involution and general boundary conditions”, Eurasian Math. J., 11:2 (2020), 30–39
А. М. Савчук, А. А. Шкаликов, “Асимптотический анализ решений обыкновенных дифференциальных уравнений с коэффициентами-распределениями”, Матем. сб., 211:11 (2020), 129–166 ; A. M. Savchuk, A. A. Shkalikov, “Asymptotic analysis of solutions of ordinary differential equations with distribution coefficients”, Sb. Math., 211:11 (2020), 1623–1659
А. С. Макин, “О регулярных краевых задачах для оператора Дирака”, Докл. РАН. Матем., информ., проц. упр., 492 (2020), 49–53 ; A. S. Makin, “Regular boundary value problems for the Dirac operator”, Dokl. Math., 101:3 (2020), 214–217
Gomilko A., Rzepnicki L., “On the Asymptotic Behaviour of Solutions of the Dirac System and Applications to the Sturm-Liouville Problem With a Singular Potential”, J. Spectr. Theory, 10:3 (2020), 747–786
Li K., Zhang M., Cai J., Zheng Zh., “Completeness Theorem For Eigenparameter Dependent Dissipative Dirac Operator With General Transfer Conditions”, J. Funct. space, 2020 (2020), 8718930
Ferzullazadeh A.G. Nabiev I.M., “Some Properties of the Spectrum of the Dirac Operator With a Spectral Parameter in the Boundary Condition”, Proc. Inst. Math. Mech., 46:2 (2020), 189–196
M. Yu. Ignatiev, “OnWeyl-type Solutions of Differential Systems with a Singularity. The Case of Discontinuous Potential”, Матем. заметки, 108:6 (2020), 814–826 ; M. Yu. Ignatiev, “OnWeyl-type Solutions of Differential Systems with a Singularity. The Case of Discontinuous Potential”, Math. Notes, 108:6 (2020), 814–826