@article{ZNSL_2022_516_a5,
     author = {M. A. Lyalinov and N. S. Fedorov},
     title = {Eigenfunctions of the essential spectrum of the {Laplace} operator in an angle with the {Robin--Neumann} boundary conditions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {121--134},
     publisher = {mathdoc},
     volume = {516},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2022_516_a5/}
}