For citations:

Aldashev S.A. A criterion for the unique solvability of the spectral Poincare problem for a class of multidimensional hyperbolic equations. Chebyshevskii Sbornik. 2023;24(1):194-202. (In Russ.) https://doi.org/10.22405/2226-8383-2023-24-1-194-202