@article{TMF_2022_213_2_a4,
     author = {M. A. Lyalinov},
     title = {Schr\"odinger operator in a half-plane with {the~Neumann} condition on the~boundary and a singular $\delta$-potential supported by two half-lines, and systems of functional-difference equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {287--319},
     publisher = {mathdoc},
     volume = {213},
     number = {2},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2022_213_2_a4/}
}