@article{DAN_1988_298_5_a1,
     author = {V. V. Belov and S. Yu. Dobrokhotov},
     title = {The {Maslov} canonical operator on isotropic manifolds with a},
     journal = {Doklady Akademii Nauk},
     pages = {1037--1042},
     publisher = {mathdoc},
     volume = {298},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_298_5_a1/}
}