A GLAZMAN–POVZNER–WIENHOLTZ THEOREM ON GRAPHS СтатьяKostenko A., Malamud M., Nicolussi N.Advances in Mathematics. Том 395. 2022.
CHARACTERISTICS OF GUT MICROBIOTA IN AUTOIMMUNE DISEASES OF THE THYROID GLAND AND THE METHODS OF ITS CORRECTION СтатьяSturov N., Popov S., Kostenko A., Roitberg G.Archiv Euromedica. Том 11. 2021. С. 82-85
SPECTRAL THEORY OF INFINITE QUANTUM GRAPHS СтатьяExner P., Kostenko A., Malamud M., Neidhardt H.Annales Henri Poincare. Том 19. 2018. С. 3457-3510
ON THE HAMILTONIAN–KREIN INDEX FOR A NON-SELF-ADJOINT SPECTRAL PROBLEM СтатьяKostenko A., Nicolussi N.Proceedings of the American Mathematical Society. Том 146. 2018. С. 3907-3921
THE CLASSICAL MOMENT PROBLEM AND GENERALIZED INDEFINITE STRINGS СтатьяEckhardt J., Kostenko A.Integral Equations and Operator Theory. Том 90. 2018.