@article{ZNSL_1978_78_a10,
     author = {I. A. Molotkov and A. S. Starkov},
     title = {Local degeneration of waves in a thin waveguide},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {138--148},
     publisher = {mathdoc},
     volume = {78},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1978_78_a10/}
}