@article{MAT_1972_16_1_a1,
     author = {L. V. H\"ormander},
     title = {Fourier integral {operators.~I}},
     journal = {Matematika},
     pages = {17--61},
     year = {1972},
     volume = {16},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1972_16_1_a1/}
}