CAUCHY PROBLEM FOR A PARABOLIC–HYPERBOLIC EQUATION WITH NON-CHARACTERISTIC LINE OF TYPE CHANGING Статья Agarwal P., Baltaeva U., Vaisova N. Mathematical Methods in the Applied Sciences. John Wiley and Sons Ltd. 2022.
EXTENSION OF THE TRICOMI PROBLEM FOR A LOADED PARABOLIC–HYPERBOLIC EQUATION WITH A CHARACTERISTIC LINE OF CHANGE OF TYPE Статья Baltaeva U., Agarwal P., Momani S. Mathematical Methods in the Applied Sciences. John Wiley and Sons Ltd. 2022.