NON-COMPACT QUANTUM GRAPHS WITH SUMMABLE MATRIX POTENTIALS ArticleGranovskyi Y., Malamud M., Neidhardt H.Annales Henri Poincare. Том 22. 2021.
QUANTUM GRAPHS WITH SUMMABLE MATRIX POTENTIALS ArticleGranovskyi Y.I., Malamud M.M., Neidhardt H.Doklady Mathematics. Том 100. 2019. С. 405-410