@article{MZM_2020_108_3_a1,
     author = {S. Yu. Dobrokhotov and V. E. Nazaikinskii},
     title = {Lagrangian {Manifolds} and {Efficient} {Short-Wave} {Asymptotics} in a {Neighborhood} of a {Caustic} {Cusp}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {334--359},
     publisher = {mathdoc},
     volume = {108},
     number = {3},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_108_3_a1/}
}