@article{ZNSL_2020_493_a15,
     author = {M. A. Lyalinov},
     title = {Eigenfunctions of negative spectrum for the {Schr\"odinger} operator in a halfplane having singular potential on a ray and with {Neumann} boundary condition},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {232--258},
     publisher = {mathdoc},
     volume = {493},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2020_493_a15/}
}