Pankov A.

Advances in Nonlinear Analysis. Том 8. 2019. С. 372-385

Nonlinear Analysis, Theory, Methods and Applications. Том 184. 2019. С. 258-272

Nonlinear Analysis: Real World Applications. Том 50. 2019. С. 603-612

Discrete and Continuous Dynamical Systems- Series A. Том 38. 2018. С. 697-714